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Sample records for survey treasury vi

  1. The ACS Nearby Galaxy Survey Treasury

    NASA Astrophysics Data System (ADS)

    Dalcanton, Julianne; Williams, B.; Gogarten, S.; Weisz, D.; Skillman, E.; Seth, A.; ANGST Team

    2007-12-01

    The ACS Nearby Galaxy Survey Treasury program (ANGST) is a program to measure photometry for millions of stars in a volume limited sample of 70 nearby galaxies. With this data set, we are deriving spatially resolved star formation histories for both dwarfs and spirals in the local volume. I will highlight initial results from the survey, including ancient star formation histories for massive spirals, halos around dwarf galaxies, spatially-resolved star formation histories in dwarfs and spirals, and the detection of variable stars. I will also discuss the ANGST involved with switching to WFPC2. This program is funded by NASA grant HST GO-10915, administered by STScI.

  2. The ACS Nearby Galaxy Survey Treasury

    NASA Astrophysics Data System (ADS)

    Weisz, Daniel R.

    2010-01-01

    The ACS Nearby Galaxy Survey Treasury (ANGST) is a systematic survey to establish a legacy of uniform multi-color photometry of resolved stars for a volume-limited sample of nearby galaxies (D<4Mpc). The survey volume encompasses 69 galaxies in diverse environments, including close pairs, small & large groups, filaments, and truly isolated regions. The galaxies include a nearly complete range of morphological types spanning a factor of 104 in luminosity and star formation rate. The survey data consists of images taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope, supplemented with archival data and new Wide Field Planetary Camera (WFPC2) imaging taken after the failure of ACS. Survey images include wide field tilings covering the full radial extent of each galaxy, and single deep pointings in uncrowded regions of the most massive galaxies in the volume. We will discuss the many ways in which this data set is being used to reconstruct the star formation history of galaxies within the local volume.

  3. The ACS Nearby Galaxy Survey Treasury

    NASA Astrophysics Data System (ADS)

    Dalcanton, Julianne J.; Williams, Benjamin F.; Seth, Anil C.; Dolphin, Andrew; Holtzman, Jon; Rosema, Keith; Skillman, Evan D.; Cole, Andrew; Girardi, Léo; Gogarten, Stephanie M.; Karachentsev, Igor D.; Olsen, Knut; Weisz, Daniel; Christensen, Charlotte; Freeman, Ken; Gilbert, Karoline; Gallart, Carme; Harris, Jason; Hodge, Paul; de Jong, Roelof S.; Karachentseva, Valentina; Mateo, Mario; Stetson, Peter B.; Tavarez, Maritza; Zaritsky, Dennis; Governato, Fabio; Quinn, Thomas

    2009-07-01

    The ACS Nearby Galaxy Survey Treasury (ANGST) is a systematic survey to establish a legacy of uniform multi-color photometry of resolved stars for a volume-limited sample of nearby galaxies (D < 4 Mpc). The survey volume encompasses 69 galaxies in diverse environments, including close pairs, small and large groups, filaments, and truly isolated regions. The galaxies include a nearly complete range of morphological types spanning a factor of ~104 in luminosity and star formation rate. The survey data consist of images taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope (HST), supplemented with archival data and new Wide Field Planetary Camera 2 (WFPC2) imaging taken after the failure of ACS. Survey images include wide field tilings covering the full radial extent of each galaxy, and single deep pointings in uncrowded regions of the most massive galaxies in the volume. The new wide field imaging in ANGST reaches median 50% completenesses of m F475W = 28.0 mag, m F606W = 27.3 mag, and m F814W = 27.3 mag, several magnitudes below the tip of the red giant branch (TRGB). The deep fields reach magnitudes sufficient to fully resolve the structure in the red clump. The resulting photometric catalogs are publicly accessible and contain over 34 million photometric measurements of >14 million stars. In this paper we present the details of the sample selection, imaging, data reduction, and the resulting photometric catalogs, along with an analysis of the photometric uncertainties (systematic and random), for both ACS and WFPC2 imaging. We also present uniformly derived relative distances measured from the apparent magnitude of the TRGB.

  4. THE ACS NEARBY GALAXY SURVEY TREASURY

    SciTech Connect

    Dalcanton, Julianne J.; Williams, Benjamin F.; Rosema, Keith; Gogarten, Stephanie M.; Christensen, Charlotte; Gilbert, Karoline; Hodge, Paul; Seth, Anil C.; Dolphin, Andrew; Holtzman, Jon; Skillman, Evan D.; Weisz, Daniel; Cole, Andrew; Girardi, Leo; Karachentsev, Igor D.; Olsen, Knut; Freeman, Ken; Gallart, Carme; De Jong, Roelof S. E-mail: ben@astro.washington.edu E-mail: stephanie@astro.washington.edu E-mail: fabio@astro.washington.edu E-mail: aseth@cfa.harvard.edu

    2009-07-15

    The ACS Nearby Galaxy Survey Treasury (ANGST) is a systematic survey to establish a legacy of uniform multi-color photometry of resolved stars for a volume-limited sample of nearby galaxies (D < 4 Mpc). The survey volume encompasses 69 galaxies in diverse environments, including close pairs, small and large groups, filaments, and truly isolated regions. The galaxies include a nearly complete range of morphological types spanning a factor of {approx}10{sup 4} in luminosity and star formation rate. The survey data consist of images taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope (HST), supplemented with archival data and new Wide Field Planetary Camera 2 (WFPC2) imaging taken after the failure of ACS. Survey images include wide field tilings covering the full radial extent of each galaxy, and single deep pointings in uncrowded regions of the most massive galaxies in the volume. The new wide field imaging in ANGST reaches median 50% completenesses of m {sub F475W} = 28.0 mag, m {sub F606W} = 27.3 mag, and m {sub F814W} = 27.3 mag, several magnitudes below the tip of the red giant branch (TRGB). The deep fields reach magnitudes sufficient to fully resolve the structure in the red clump. The resulting photometric catalogs are publicly accessible and contain over 34 million photometric measurements of >14 million stars. In this paper we present the details of the sample selection, imaging, data reduction, and the resulting photometric catalogs, along with an analysis of the photometric uncertainties (systematic and random), for both ACS and WFPC2 imaging. We also present uniformly derived relative distances measured from the apparent magnitude of the TRGB.

  5. THE MUSCLES TREASURY SURVEY. I. MOTIVATION AND OVERVIEW

    SciTech Connect

    France, Kevin; Loyd, R. O. Parke; Youngblood, Allison; Brown, Alexander; Schneider, P. Christian; Hawley, Suzanne L.; Froning, Cynthia S.; Linsky, Jeffrey L.; Roberge, Aki; Buccino, Andrea P.; Mauas, Pablo J. D.; Davenport, James R. A.; Fontenla, Juan M.; Kaltenegger, Lisa; Kowalski, Adam F.; Miguel, Yamila; Redfield, Seth; and others

    2016-04-01

    Ground- and space-based planet searches employing radial velocity techniques and transit photometry have detected thousands of planet-hosting stars in the Milky Way. With so many planets discovered, the next step toward identifying potentially habitable planets is atmospheric characterization. While the Sun–Earth system provides a good framework for understanding the atmospheric chemistry of Earth-like planets around solar-type stars, the observational and theoretical constraints on the atmospheres of rocky planets in the habitable zones (HZs) around low-mass stars (K and M dwarfs) are relatively few. The chemistry of these atmospheres is controlled by the shape and absolute flux of the stellar spectral energy distribution (SED), however, flux distributions of relatively inactive low-mass stars are poorly understood at present. To address this issue, we have executed a panchromatic (X-ray to mid-IR) study of the SEDs of 11 nearby planet-hosting stars, the Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems (MUSCLES) Treasury Survey. The MUSCLES program consists visible observations from Hubble and ground-based observatories. Infrared and astrophysically inaccessible wavelengths (EUV and Lyα) are reconstructed using stellar model spectra to fill in gaps in the observational data. In this overview and the companion papers describing the MUSCLES survey, we show that energetic radiation (X-ray and ultraviolet) is present from magnetically active stellar atmospheres at all times for stars as late as M6. The emission line luminosities of C iv and Mg ii are strongly correlated with band-integrated luminosities and we present empirical relations that can be used to estimate broadband FUV and XUV (≡X-ray + EUV) fluxes from individual stellar emission line measurements. We find that while the slope of the SED, FUV/NUV, increases by approximately two orders of magnitude form early K to late M dwarfs (≈0.01–1), the absolute FUV

  6. The Muscles Treasury Survey. I. Motivation and Overview

    NASA Technical Reports Server (NTRS)

    France, Kevin; Loyd, R. O. Parke; Youngblood, Allison; Brown, Alexander; Schneider, P. Christian; Hawley, Suzanne L.; Froning, Cynthia S.; Linsky, Jeffrey L.; Roberge, Aki; Buccino, Andrea P.

    2016-01-01

    Ground- and space-based planet searches employing radial velocity techniques and transit photometry have detected thousands of planet-hosting stars in the Milky Way. With so many planets discovered, the next step toward identifying potentially habitable planets is atmospheric characterization. While the Sun-Earth system provides a good framework for understanding the atmospheric chemistry of Earth-like planets around solar-type stars, the observational and theoretical constraints on the atmospheres of rocky planets in the habitable zones (HZs) around low-mass stars (K and M dwarfs) are relatively few. The chemistry of these atmospheres is controlled by the shape and absolute flux of the stellar spectral energy distribution (SED), however, flux distributions of relatively inactive low-mass stars are poorly understood at present. To address this issue, we have executed a panchromatic (X-ray to mid-IR) study of the SEDs of 11 nearby planet-hosting stars, the Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems (MUSCLES) Treasury Survey. The MUSCLES program consists visible observations from Hubble and ground-based observatories. Infrared and astrophysically inaccessible wavelengths (EUV and Lyalpha) are reconstructed using stellar model spectra to fill in gaps in the observational data. In this overview and the companion papers describing the MUSCLES survey, we show that energetic radiation (X-ray and ultraviolet) is present from magnetically active stellar atmospheres at all times for stars as late as M6. The emission line luminosities of C IV and Mg II are strongly correlated with band-integrated luminosities and we present empirical relations that can be used to estimate broadband FUV and XUV (is equivalent to X-ray + EUV) fluxes from individual stellar emission line measurements. We find that while the slope of the SED, FUV/NUV, increases by approximately two orders of magnitude form early K to late M dwarfs (approximately

  7. The MUSCLES Treasury Survey. I. Motivation and Overview

    NASA Astrophysics Data System (ADS)

    France, Kevin; Parke Loyd, R. O.; Youngblood, Allison; Brown, Alexander; Schneider, P. Christian; Hawley, Suzanne L.; Froning, Cynthia S.; Linsky, Jeffrey L.; Roberge, Aki; Buccino, Andrea P.; Davenport, James R. A.; Fontenla, Juan M.; Kaltenegger, Lisa; Kowalski, Adam F.; Mauas, Pablo J. D.; Miguel, Yamila; Redfield, Seth; Rugheimer, Sarah; Tian, Feng; Vieytes, Mariela C.; Walkowicz, Lucianne M.; Weisenburger, Kolby L.

    2016-04-01

    Ground- and space-based planet searches employing radial velocity techniques and transit photometry have detected thousands of planet-hosting stars in the Milky Way. With so many planets discovered, the next step toward identifying potentially habitable planets is atmospheric characterization. While the Sun-Earth system provides a good framework for understanding the atmospheric chemistry of Earth-like planets around solar-type stars, the observational and theoretical constraints on the atmospheres of rocky planets in the habitable zones (HZs) around low-mass stars (K and M dwarfs) are relatively few. The chemistry of these atmospheres is controlled by the shape and absolute flux of the stellar spectral energy distribution (SED), however, flux distributions of relatively inactive low-mass stars are poorly understood at present. To address this issue, we have executed a panchromatic (X-ray to mid-IR) study of the SEDs of 11 nearby planet-hosting stars, the Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems (MUSCLES) Treasury Survey. The MUSCLES program consists visible observations from Hubble and ground-based observatories. Infrared and astrophysically inaccessible wavelengths (EUV and Lyα) are reconstructed using stellar model spectra to fill in gaps in the observational data. In this overview and the companion papers describing the MUSCLES survey, we show that energetic radiation (X-ray and ultraviolet) is present from magnetically active stellar atmospheres at all times for stars as late as M6. The emission line luminosities of C iv and Mg ii are strongly correlated with band-integrated luminosities and we present empirical relations that can be used to estimate broadband FUV and XUV (≡X-ray + EUV) fluxes from individual stellar emission line measurements. We find that while the slope of the SED, FUV/NUV, increases by approximately two orders of magnitude form early K to late M dwarfs (≈0.01-1), the absolute FUV and

  8. The Muscles Treasury Survey. I. Motivation and Overview

    NASA Technical Reports Server (NTRS)

    France, Kevin; Loyd, R. O. Parke; Youngblood, Allison; Brown, Alexander; Schneider, P. Christian; Hawley, Suzanne L.; Froning, Cynthia S.; Linsky, Jeffrey L.; Roberge, Aki; Buccino, Andrea P.

    2016-01-01

    Ground- and space-based planet searches employing radial velocity techniques and transit photometry have detected thousands of planet-hosting stars in the Milky Way. With so many planets discovered, the next step toward identifying potentially habitable planets is atmospheric characterization. While the Sun-Earth system provides a good framework for understanding the atmospheric chemistry of Earth-like planets around solar-type stars, the observational and theoretical constraints on the atmospheres of rocky planets in the habitable zones (HZs) around low-mass stars (K and M dwarfs) are relatively few. The chemistry of these atmospheres is controlled by the shape and absolute flux of the stellar spectral energy distribution (SED), however, flux distributions of relatively inactive low-mass stars are poorly understood at present. To address this issue, we have executed a panchromatic (X-ray to mid-IR) study of the SEDs of 11 nearby planet-hosting stars, the Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems (MUSCLES) Treasury Survey. The MUSCLES program consists visible observations from Hubble and ground-based observatories. Infrared and astrophysically inaccessible wavelengths (EUV and Lyalpha) are reconstructed using stellar model spectra to fill in gaps in the observational data. In this overview and the companion papers describing the MUSCLES survey, we show that energetic radiation (X-ray and ultraviolet) is present from magnetically active stellar atmospheres at all times for stars as late as M6. The emission line luminosities of C IV and Mg II are strongly correlated with band-integrated luminosities and we present empirical relations that can be used to estimate broadband FUV and XUV (is equivalent to X-ray + EUV) fluxes from individual stellar emission line measurements. We find that while the slope of the SED, FUV/NUV, increases by approximately two orders of magnitude form early K to late M dwarfs (approximately

  9. THE ACS NEARBY GALAXY SURVEY TREASURY. III. CEPHEIDS IN THE OUTER DISK OF M81

    SciTech Connect

    McCommas, Les P.; Williams, Benjamin F.; Dalcanton, Julianne J.; Davis, Matthew R.; Yoachim, Peter; Dolphin, Andrew E. E-mail: jd@astro.washington.edu E-mail: mrdavis@astro.washington.edu E-mail: adolphin@ratheon.com

    2009-06-15

    The ACS Nearby Galaxy Survey Treasury (ANGST) has acquired deep ACS imaging of a field in the outer disk of the large spiral galaxy M81. These data were obtained over a total of 20 Hubble Space Telescope orbits, providing a baseline long enough to reliably identify Cepheid variable stars in the field. Fundamental mode and first overtone types have been distinguished through comparative fits with corresponding Cepheid light curve templates derived from principal component analysis of confirmed Cepheids in the Large Magellanic Cloud (LMC), Small Magellanic Cloud, and Milky Way. A distance modulus of 27.78 {+-} 0.05 {sub r} {+-} 0.14 {sub s} with a corresponding distance of 3.60 {+-} 0.23 Mpc has been calculated from a sample of 11 fundamental mode and two first overtone Cepheids (assuming an LMC distance modulus of {mu}{sub LMC} = 18.41 {+-} 0.10 {sub r} {+-} 0.13 {sub s})

  10. Panchromatic Hubble Andromeda Treasury. IX. A Photometric Survey of Planetary Nebulae in M31

    NASA Astrophysics Data System (ADS)

    Veyette, Mark J.; Williams, Benjamin F.; Dalcanton, Julianne J.; Balick, Bruce; Caldwell, Nelson; Fouesneau, Morgan; Girardi, Léo; Gordon, Karl D.; Kalirai, Jason; Rosenfield, Philip; Seth, Anil C.

    2014-09-01

    We search the Hubble Space Telescope (HST) Advanced Camera for Surveys and Wide Field Camera 3 broadband imaging data from the Panchromatic Hubble Andromeda Treasury (PHAT) survey to identify detections of cataloged planetary nebulae (PNs). Of the 711 PNs currently in the literature within the PHAT footprint, we find 467 detected in the broadband. For these 467, we are able to refine their astrometric accuracy from ~0.''3 to 0.''05. Using the resolution of the HST, we are able to show that 152 objects currently in the catalogs are definitively not PNs, and we show that 32 objects thought to be extended in ground-based images are actually point-like and therefore good PN candidates. We also find one PN candidate that is marginally resolved. If this is a PN, it is up to 0.7 pc in diameter. With our new photometric data, we develop a method of measuring the level of excitation in individual PNs by comparing broadband and narrowband imaging and describe the effects of excitation on a PN's photometric signature. Using the photometric properties of the known PNs in the PHAT catalogs, we search for more PNs, but do not find any new candidates, suggesting that ground-based emission-line surveys are complete in the PHAT footprint to F475W ~= 24.

  11. Panchromatic Hubble Andromeda Treasury. IX. A photometric survey of planetary nebulae in M31

    SciTech Connect

    Veyette, Mark J.; Williams, Benjamin F.; Dalcanton, Julianne J.; Balick, Bruce; Fouesneau, Morgan; Caldwell, Nelson; Girardi, Léo; Gordon, Karl D.; Kalirai, Jason; Rosenfield, Philip; Seth, Anil C.

    2014-09-10

    We search the Hubble Space Telescope (HST) Advanced Camera for Surveys and Wide Field Camera 3 broadband imaging data from the Panchromatic Hubble Andromeda Treasury (PHAT) survey to identify detections of cataloged planetary nebulae (PNs). Of the 711 PNs currently in the literature within the PHAT footprint, we find 467 detected in the broadband. For these 467, we are able to refine their astrometric accuracy from ∼0.''3 to 0.''05. Using the resolution of the HST, we are able to show that 152 objects currently in the catalogs are definitively not PNs, and we show that 32 objects thought to be extended in ground-based images are actually point-like and therefore good PN candidates. We also find one PN candidate that is marginally resolved. If this is a PN, it is up to 0.7 pc in diameter. With our new photometric data, we develop a method of measuring the level of excitation in individual PNs by comparing broadband and narrowband imaging and describe the effects of excitation on a PN's photometric signature. Using the photometric properties of the known PNs in the PHAT catalogs, we search for more PNs, but do not find any new candidates, suggesting that ground-based emission-line surveys are complete in the PHAT footprint to F475W ≅ 24.

  12. Multi-wavelength Characterization of Exoplanet Host Stars with the MUSCLES Treasury Survey

    NASA Astrophysics Data System (ADS)

    France, Kevin; Youngblood, Allison; Parke Loyd, R. O.; Schneider, Christian

    2017-01-01

    High-energy photons (X-ray to NUV) from exoplanet host stars regulate the atmospheric temperature profiles and photochemistry on orbiting planets, influencing the long-term stability of planetary atmospheres and the production of potential “biomarker” gases. However, relatively few observational and theoretical constraints exist on the high-energy irradiance from typical (i.e., weakly active) M and K dwarf exoplanet host stars. In this talk, I will describe results from a panchromatic survey (Chandra/XMM/Hubble/ground) of M and K dwarf exoplanet hosts. The MUSCLES Treasury Survey (Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems) combines UV, X-ray, and optical observations with reconstructed Lyman-alpha and EUV (100-900 Ang) radiation to create 5 Angstrom to 5 micron stellar irradiance spectra that are available as a High-Level Science Product on STScI/MAST. I will discuss how we use multi-wavelength observations to study possible abiotic production of the suggested biomarkers O2 and O3, develop scaling relations to infer the high-energy particle fluxes from these stars based on solar UV flare/particle flux measurements, calibrate visible-wavelength proxies for the high-energy irradiance, and characterize the UV variability and flare frequency of “optically inactive” M dwarfs.

  13. THE ADVANCED CAMERA FOR SURVEYS NEARBY GALAXY SURVEY TREASURY. V. RADIAL STAR FORMATION HISTORY OF NGC 300

    SciTech Connect

    Gogarten, Stephanie M.; Dalcanton, Julianne J.; Williams, Benjamin F.; Roskar, Rok; Gilbert, Karoline M.; Quinn, Thomas R.; Holtzman, Jon; Seth, Anil C.; Dolphin, Andrew; Weisz, Daniel; Skillman, Evan; Cole, Andrew; Debattista, Victor P.; Olsen, Knut; De Jong, Roelof S.; Karachentsev, Igor D.

    2010-04-01

    We present new Hubble Space Telescope (HST) observations of NGC 300 taken as part of the Advanced Camera for Surveys Nearby Galaxy Survey Treasury (ANGST). Individual stars are resolved in these images down to an absolute magnitude of M{sub F814W} = 1.0 (below the red clump). We determine the star formation history of the galaxy in six radial bins by comparing our observed color-magnitude diagrams (CMDs) with synthetic CMDs based on theoretical isochrones. We find that the stellar disk out to 5.4 kpc is primarily old, in contrast with the outwardly similar galaxy M33. We determine the scale length as a function of age and find evidence for inside-out growth of the stellar disk: the scale length has increased from 1.1 +- 0.1 kpc 10 Gyr ago to 1.3 +- 0.1 kpc at present, indicating a buildup in the fraction of young stars at larger radii. As the scale length of M33 has recently been shown to have increased much more dramatically with time, our results demonstrate that two galaxies with similar sizes and morphologies can have very different histories. With an N-body simulation of a galaxy designed to be similar to NGC 300, we determine that the effects of radial migration should be minimal. We trace the metallicity gradient as a function of time and find a present-day metallicity gradient consistent with that seen in previous studies. Consistent results are obtained from archival images covering the same radial extent but differing in placement and filter combination.

  14. THE ADVANCED CAMERA FOR SURVEYS NEARBY GALAXY SURVEY TREASURY. IV. THE STAR FORMATION HISTORY OF NGC 2976

    SciTech Connect

    Williams, Benjamin F.; Dalcanton, Julianne J.; Stilp, Adrienne; Gilbert, Karoline M.; Roskar, Rok; Gogarten, Stephanie M.; Seth, Anil C.; Weisz, Daniel; Skillman, Evan; Dolphin, Andrew; Holtzman, Jon E-mail: jd@astro.washington.ed E-mail: stephanie@astro.washington.ed E-mail: dweisz@astro.umn.ed E-mail: dolphin@raytheon.co

    2010-01-20

    We present resolved stellar photometry of NGC 2976 obtained with the Advanced Camera for Surveys (ACS) as part of the ACS Nearby Galaxy Survey Treasury (ANGST) program. The data cover the radial extent of the major axis of the disk out to 6 kpc, or approx6 scale lengths. The outer disk was imaged to a depth of M{sub F606W} approx 1, and an inner field was imaged to the crowding limit at a depth of M{sub F606W} approx -1. Through detailed analysis and modeling of the resulting color-magnitude diagrams, we have reconstructed the star formation history (SFH) of the stellar populations currently residing in these portions of the galaxy, finding similar ancient populations at all radii but significantly different young populations at increasing radii. In particular, outside of the well-measured break in the disk surface brightness profile, the age of the youngest population increases with distance from the galaxy center, suggesting that star formation is shutting down from the outside-in. We use our measured SFH, along with H I surface density measurements, to reconstruct the surface density profile of the disk during previous epochs. Comparisons between the recovered star formation rates and reconstructed gas densities at previous epochs are consistent with star formation following the Schmidt law during the past 0.5 Gyr, but with a drop in star formation efficiency at low gas densities, as seen in local galaxies at the present day. The current rate and gas density suggest that rapid star formation in NGC 2976 is currently in the process of ceasing from the outside-in due to gas depletion. This process of outer disk gas depletion and inner disk star formation was likely triggered by an interaction with the core of the M81 group approx>1 Gyr ago that stripped the gas from the galaxy halo and/or triggered gas inflow from the outer disk toward the galaxy center.

  15. The Advanced Camera for Surveys Nearby Galaxy Survey Treasury. IV. The Star Formation History of NGC 2976

    NASA Astrophysics Data System (ADS)

    Williams, Benjamin F.; Dalcanton, Julianne J.; Stilp, Adrienne; Gilbert, Karoline M.; Roškar, Rok; Seth, Anil C.; Weisz, Daniel; Dolphin, Andrew; Gogarten, Stephanie M.; Skillman, Evan; Holtzman, Jon

    2010-01-01

    We present resolved stellar photometry of NGC 2976 obtained with the Advanced Camera for Surveys (ACS) as part of the ACS Nearby Galaxy Survey Treasury (ANGST) program. The data cover the radial extent of the major axis of the disk out to 6 kpc, or ~6 scale lengths. The outer disk was imaged to a depth of M F606W ~ 1, and an inner field was imaged to the crowding limit at a depth of M F606W ~ -1. Through detailed analysis and modeling of the resulting color-magnitude diagrams, we have reconstructed the star formation history (SFH) of the stellar populations currently residing in these portions of the galaxy, finding similar ancient populations at all radii but significantly different young populations at increasing radii. In particular, outside of the well-measured break in the disk surface brightness profile, the age of the youngest population increases with distance from the galaxy center, suggesting that star formation is shutting down from the outside-in. We use our measured SFH, along with H I surface density measurements, to reconstruct the surface density profile of the disk during previous epochs. Comparisons between the recovered star formation rates and reconstructed gas densities at previous epochs are consistent with star formation following the Schmidt law during the past 0.5 Gyr, but with a drop in star formation efficiency at low gas densities, as seen in local galaxies at the present day. The current rate and gas density suggest that rapid star formation in NGC 2976 is currently in the process of ceasing from the outside-in due to gas depletion. This process of outer disk gas depletion and inner disk star formation was likely triggered by an interaction with the core of the M81 group gsim1 Gyr ago that stripped the gas from the galaxy halo and/or triggered gas inflow from the outer disk toward the galaxy center.

  16. The Advanced Camera for Surveys Nearby Galaxy Survey Treasury. V. Radial Star Formation History of NGC 300

    NASA Astrophysics Data System (ADS)

    Gogarten, Stephanie M.; Dalcanton, Julianne J.; Williams, Benjamin F.; Roškar, Rok; Holtzman, Jon; Seth, Anil C.; Dolphin, Andrew; Weisz, Daniel; Cole, Andrew; Debattista, Victor P.; Gilbert, Karoline M.; Olsen, Knut; Skillman, Evan; de Jong, Roelof S.; Karachentsev, Igor D.; Quinn, Thomas R.

    2010-04-01

    We present new Hubble Space Telescope (HST) observations of NGC 300 taken as part of the Advanced Camera for Surveys Nearby Galaxy Survey Treasury (ANGST). Individual stars are resolved in these images down to an absolute magnitude of M F814W = 1.0 (below the red clump). We determine the star formation history of the galaxy in six radial bins by comparing our observed color-magnitude diagrams (CMDs) with synthetic CMDs based on theoretical isochrones. We find that the stellar disk out to 5.4 kpc is primarily old, in contrast with the outwardly similar galaxy M33. We determine the scale length as a function of age and find evidence for inside-out growth of the stellar disk: the scale length has increased from 1.1 ± 0.1 kpc 10 Gyr ago to 1.3 ± 0.1 kpc at present, indicating a buildup in the fraction of young stars at larger radii. As the scale length of M33 has recently been shown to have increased much more dramatically with time, our results demonstrate that two galaxies with similar sizes and morphologies can have very different histories. With an N-body simulation of a galaxy designed to be similar to NGC 300, we determine that the effects of radial migration should be minimal. We trace the metallicity gradient as a function of time and find a present-day metallicity gradient consistent with that seen in previous studies. Consistent results are obtained from archival images covering the same radial extent but differing in placement and filter combination.

  17. The ACS Nearby Galaxy Survey Treasury. I. The Star Formation History of the M81 Outer Disk

    NASA Astrophysics Data System (ADS)

    Williams, Benjamin F.; Dalcanton, Julianne J.; Seth, Anil C.; Weisz, Daniel; Dolphin, Andrew; Skillman, Evan; Harris, Jason; Holtzman, Jon; Girardi, Léo; de Jong, Roelof S.; Olsen, Knut; Cole, Andrew; Gallart, Carme; Gogarten, Stephanie M.; Hidalgo, Sebastian L.; Mateo, Mario; Rosema, Keith; Stetson, Peter B.; Quinn, Thomas

    2009-01-01

    The Advanced Camera for Surveys (ACS) Nearby Galaxy Survey Treasury is a large Hubble Space Telescope (HST)/ACS treasury program to obtain resolved stellar photometry for a volume-limited sample of galaxies out to 4 Mpc. As part of this program, we have obtained deep ACS imaging of a field in the outer disk of the large spiral galaxy M81. The field contains the outskirts of a spiral arm as well as an area containing no current star formation. Our imaging results in a color-magnitude diagram (CMD) reaching to m F814W = 28.8 and m F606W = 29.5, one magnitude fainter than the red clump. Through detailed modeling of the full CMD, we quantify the age and metallicity distribution of the stellar populations contained in the field. The mean metallicity in the field is -1 < [M/H] < 0 and only a small fraction of stars have ages lsim 1 Gyr. The results show that most of the stars in this outer disk field were formed by z ~ 1 and that the arm structure at this radius has a lifetime of gsim 100 Myr. We discuss the measured evolution of the M81 disk in the context of surveys of high redshift disk galaxies and deep stellar photometry of other nearby galaxies. All of these indicate that massive spiral disks are mostly formed by z ~ 1 and that they have experienced rapid metal enrichment.

  18. THE ADVANCED CAMERA FOR SURVEYS NEARBY GALAXY SURVEY TREASURY. VI. THE ANCIENT STAR-FORMING DISK OF NGC 404

    SciTech Connect

    Williams, Benjamin F.; Dalcanton, Julianne J.; Gilbert, Karoline M.; Stilp, Adrienne; Dolphin, Andrew; Seth, Anil C.; Weisz, Daniel; Skillman, Evan E-mail: jd@astro.washington.ed E-mail: roskar@astro.washington.ed E-mail: aseth@cfa.harvard.ed E-mail: skillman@astro.umn.ed

    2010-06-10

    We present HST/WFPC2 observations across the disk of the nearby isolated dwarf S0 galaxy NGC 404, which hosts an extended gas disk. The locations of our fields contain a roughly equal mixture of bulge and disk stars. All of our resolved stellar photometry reaches m {sub F814W} = 26 (M {sub F814W} = -1.4), which covers 2.5 mag of the red giant branch and main-sequence stars with ages <300 Myr. Our deepest field reaches m {sub F814W} = 27.2 (M {sub F814W} = -0.2), sufficient to resolve the red clump and main-sequence stars with ages <500 Myr. Although we detect trace amounts of star formation at times more recent than 10 Gyr ago for all fields, the proportion of red giant stars to asymptotic giants and main-sequence stars suggests that the disk is dominated by an ancient (>10 Gyr) population. Detailed modeling of the color-magnitude diagram suggests that {approx}70% of the stellar mass in the NGC 404 disk formed by z {approx} 2 (10 Gyr ago) and at least {approx}90% formed prior to z {approx} 1 (8 Gyr ago). These results indicate that the stellar populations of the NGC 404 disk are on average significantly older than those of other nearby disk galaxies, suggesting that early- and late-type disks may have different long-term evolutionary histories, not simply differences in their recent star formation rates. Comparisons of the spatial distribution of the young stellar mass and FUV emission in Galaxy Evolution Explorer images show that the brightest FUV regions contain the youngest stars, but that some young stars (<160 Myr) lie outside of these regions. FUV luminosity appears to be strongly affected by both age and stellar mass within individual regions. Finally, we use our measurements to infer the relationship between the star formation rate and the gas density of the disk at previous epochs. We find that most of the history of the NGC 404 disk is consistent with star formation that has decreased with the gas density according to the Schmidt law. However, {approx} 0.5-1 Gyr ago, the star formation rate was unusually low for the inferred gas density, consistent with the possibility that there was a gas accretion event that reignited star formation {approx}0.5 Gyr ago. Such an event could explain why this S0 galaxy hosts an extended gas disk.

  19. The FUSE Survey of 0 VI in the Galactic Halo

    NASA Technical Reports Server (NTRS)

    Sonneborn, George; Savage, B. D.; Wakker, B. P.; Sembach, K. R.; Jenkins, E. B.; Moos, H. W.; Shull, J. M.

    2003-01-01

    This paper summarizes the results of the Far-Ultraviolet Spectroscopic Explorer (FUSE) program to study 0 VI in the Milky Way halo. Spectra of 100 extragalactic objects and two distant halo stars are analyzed to obtain measures of O VI absorption along paths through the Milky Way thick disk/halo. Strong O VI absorption over the velocity range from -100 to 100 km/s reveals a widespread but highly irregular distribution of O VI, implying the existence of substantial amounts of hot gas with T approx. 3 x 10(exp 5) K in the Milky Way thick disk/halo. The overall distribution of O VI is not well described by a symmetrical plane-parallel layer of patchy O VI absorption. The simplest departure from such a model that provides a reasonable fit to the observations is a plane-parallel patchy absorbing layer with an average O VI mid-plane density of n(sub 0)(O VI) = 1.7 x 10(exp -2)/cu cm, a scale height of approx. 2.3 kpc, and a approx. 0.25 dex excess of O VI in the northern Galactic polar region. The distribution of O VI over the sky is poorly correlated with other tracers of gas in the halo, including low and intermediate velocity H I, Ha emission from the warm ionized gas at approx. l0(exp 4) K, and hot X-ray emitting gas at approx. l0(exp 6) K . The O VI has an average velocity dispersion, b approx. 60 km/s and standard deviation of 15 km/s. Thermal broadening alone cannot explain the large observed profile widths. A combination of models involving the radiative cooling of hot fountain gas, the cooling of supernova bubbles in the halo, and the turbulent mixing of warm and hot halo gases is required to explain the presence of O VI and other highly ionized atoms found in the halo. The preferential venting of hot gas from local bubbles and superbubbles into the northern Galactic polar region may explain the enhancement of O VI in the North.

  20. The FUSE Survey of 0 VI in the Galactic Halo

    NASA Technical Reports Server (NTRS)

    Sonneborn, George; Savage, B. D.; Wakker, B. P.; Sembach, K. R.; Jenkins, E. B.; Moos, H. W.; Shull, J. M.

    2003-01-01

    This paper summarizes the results of the Far-Ultraviolet Spectroscopic Explorer (FUSE) program to study 0 VI in the Milky Way halo. Spectra of 100 extragalactic objects and two distant halo stars are analyzed to obtain measures of O VI absorption along paths through the Milky Way thick disk/halo. Strong O VI absorption over the velocity range from -100 to 100 km/s reveals a widespread but highly irregular distribution of O VI, implying the existence of substantial amounts of hot gas with T approx. 3 x 10(exp 5) K in the Milky Way thick disk/halo. The overall distribution of O VI is not well described by a symmetrical plane-parallel layer of patchy O VI absorption. The simplest departure from such a model that provides a reasonable fit to the observations is a plane-parallel patchy absorbing layer with an average O VI mid-plane density of n(sub 0)(O VI) = 1.7 x 10(exp -2)/cu cm, a scale height of approx. 2.3 kpc, and a approx. 0.25 dex excess of O VI in the northern Galactic polar region. The distribution of O VI over the sky is poorly correlated with other tracers of gas in the halo, including low and intermediate velocity H I, Ha emission from the warm ionized gas at approx. l0(exp 4) K, and hot X-ray emitting gas at approx. l0(exp 6) K . The O VI has an average velocity dispersion, b approx. 60 km/s and standard deviation of 15 km/s. Thermal broadening alone cannot explain the large observed profile widths. A combination of models involving the radiative cooling of hot fountain gas, the cooling of supernova bubbles in the halo, and the turbulent mixing of warm and hot halo gases is required to explain the presence of O VI and other highly ionized atoms found in the halo. The preferential venting of hot gas from local bubbles and superbubbles into the northern Galactic polar region may explain the enhancement of O VI in the North.

  1. Celestial Treasury

    NASA Astrophysics Data System (ADS)

    Lachièze-Rey, Marc; Luminet, Jean-Pierre

    2001-07-01

    Throughout history, the mysterious dark skies have inspired our imaginations in countless ways, influencing our endeavors in science and philosophy, religion, literature, and art. Filled with 380 full-color illustrations, Celestial Treasury shows the influence of astronomical theories and the richness of illustrations in Western civilization through the ages. The authors explore the evolution of our understanding of astronomy and weave together ancient and modern theories in a fascinating narrative. They incorporate a wealth of detail from Greek verse, medieval manuscripts and Victorian poetry with contemporary spacecraft photographs and computer-generated star charts. Celestial Treasury is more than a beautiful book: it answers a variety of questions that have intrigued scientists and laymen for centuries. -- How did philosophers and scientists try to explain the order that governs celestial motion? -- How did geometers and artists measure and map the skies? -- How many different answers have been proposed for the most fundamental of all questions: When and how did Earth come about? -- Who inhabits the heavens--gods, angels or extraterrestrials? No other book recounts humankind's fascination with the heavens as compellingly as Celestial Treasury. Marc Lachièze-Rey is a director of research at the Centre National pour la Récherche Scientifique and astrophysicist at the Centre d'Etudes de Saclay. He is the author of The Cosmic Background Radiation (Cambridge, 1999), and and The Quest for Unity, (Oxford, 1999 ), as well as many books in French. Jean-Pierre Luminet is a research director of the Centre National pour la Rechérche Scientifique, based at the Paris-Meudon observatory. He is the author of Black Holes, (Cambridge 1992), as well as science documentaries for television.

  2. THE ACS NEARBY GALAXY SURVEY TREASURY. XI. THE REMARKABLY UNDISTURBED NGC 2403 DISK

    SciTech Connect

    Williams, Benjamin F.; Dalcanton, Julianne J.; Stilp, Adrienne; Radburn-Smith, David; Dolphin, Andrew; Skillman, Evan D. E-mail: jd@astro.washington.edu E-mail: dolphin@raytheon.com

    2013-03-10

    We present detailed analysis of color-magnitude diagrams of NGC 2403, obtained from a deep (m {approx}< 28) Hubble Space Telescope (HST) Wide Field Planetary Camera 2 observation of the outer disk of NGC 2403, supplemented by several shallow (m {approx}< 26) HST Advanced Camera for Surveys fields. We derive the spatially resolved star formation history of NGC 2403 out to 11 disk scale lengths. In the inner portions of the galaxy, we compare the recent star formation rates (SFRs) we derive from the resolved stars with those measured using GALEX FUV + Spitzer 24{mu} fluxes, finding excellent agreement between the methods. Our measurements also show that the radial gradient in recent SFR mirrors the disk exponential profile to 11 scale lengths with no break, extending to SFR densities a factor of {approx}100 lower than those that can be measured with GALEX and Spitzer ({approx}2 Multiplication-Sign 10{sup -6} M{sub Sun} yr{sup -1} kpc{sup -2}). Furthermore, we find that the cumulative stellar mass of the disk was formed at similar times at all radii. We compare these characteristics of NGC 2403 to those of its ''morphological twins'', NGC 300 and M 33, showing that the structure and age distributions of the NGC 2403 disk are more similar to those of the relatively isolated system NGC 300 than to those of the Local Group analog M 33. We also discuss the environments and HI morphologies of these three nearby galaxies, comparing them to integrated light studies of larger samples of more distant galaxy disks. Taken together, the physical properties and evolutionary history of NGC 2403 suggest that the galaxy has had no close encounters with other M 81 group members and may be falling into the group for the first time.

  3. The MUSCLES Treasury Survey: Temporally- and Spectrally-Resolved Irradiance from Low-mass Exoplanet Host Stars

    NASA Astrophysics Data System (ADS)

    France, Kevin; Parke Loyd, R. O.; Youngblood, Allison; Linsky, Jeffrey; MUSCLES Treasury Survey Team

    2016-01-01

    The spectral and temporal behavior of exoplanet host stars is a critical input to models of the chemistry and evolution of planetary atmospheres. High-energy photons (X-ray to near-UV; 5 - 3200 Ang) from these stars regulate the atmospheric temperature profiles and photochemistry on orbiting planets, influencing the production of potential "biomarker" gases. It has been shown that the atmospheric signatures of potentially habitable planets around low-mass stars may be significantly different from planets orbiting Sun-like stars owing to the different UV spectral energy distribution. I will present results from a panchromatic survey (Hubble/Chandra/XMM/optical) of M and K dwarf exoplanet hosts, the MUSCLES Treasury Survey (Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems). We reconstruct the Lyman-alpha and extreme-UV (100-900 Ang) radiation lost to interstellar attenuation and create 5 Angstrom to 5 micron stellar irradiance spectra; these data will be publically available as a High-Level Science Product on MAST. We find that all low-mass exoplanet host stars exhibit significant chromospheric/transition region/coronal emission -- no "UV inactive" M dwarfs are observed. The F(far-UV)/F(near-UV) flux ratio, a driver for possible abiotic production of the suggested biomarkers O2 and O3, increases by ~3 orders of magnitude as the habitable zone moves inward from 1 to 0.1 AU, while the incident far-UV (912 - 1700 Ang) and XUV (5 - 900 Ang) radiation field strengths decrease by factors of a few across this range. Far-UV flare activity is common in 'optically inactive' M dwarfs; statistics from the entire sample indicate that large UV flares (E(300 - 1700 Ang) >= 10^31 erg) occur several times per day on typical M dwarf exoplanet hosts.

  4. The MUSCLES Treasury Survey. IV. Scaling Relations for Ultraviolet, Ca ii K, and Energetic Particle Fluxes from M Dwarfs

    NASA Astrophysics Data System (ADS)

    Youngblood, Allison; France, Kevin; Parke Loyd, R. O.; Brown, Alexander; Mason, James P.; Schneider, P. Christian; Tilley, Matt A.; Berta-Thompson, Zachory K.; Buccino, Andrea; Froning, Cynthia S.; Hawley, Suzanne L.; Linsky, Jeffrey; Mauas, Pablo J. D.; Redfield, Seth; Kowalski, Adam; Miguel, Yamila; Newton, Elisabeth R.; Rugheimer, Sarah; Segura, Antígona; Roberge, Aki; Vieytes, Mariela

    2017-07-01

    Characterizing the UV spectral energy distribution (SED) of an exoplanet host star is critically important for assessing its planet’s potential habitability, particularly for M dwarfs, as they are prime targets for current and near-term exoplanet characterization efforts and atmospheric models predict that their UV radiation can produce photochemistry on habitable zone planets different from that on Earth. To derive ground-based proxies for UV emission for use when Hubble Space Telescope (HST) observations are unavailable, we have assembled a sample of 15 early to mid-M dwarfs observed by HST and compared their nonsimultaneous UV and optical spectra. We find that the equivalent width of the chromospheric Ca ii K line at 3933 Å, when corrected for spectral type, can be used to estimate the stellar surface flux in ultraviolet emission lines, including H i Lyα. In addition, we address another potential driver of habitability: energetic particle fluxes associated with flares. We present a new technique for estimating soft X-ray and >10 MeV proton flux during far-UV emission line flares (Si iv and He ii) by assuming solar-like energy partitions. We analyze several flares from the M4 dwarf GJ 876 observed with HST and Chandra as part of the MUSCLES Treasury Survey and find that habitable zone planets orbiting GJ 876 are impacted by large Carrington-like flares with peak soft X-ray fluxes ≥10-3 W m-2 and possible proton fluxes ˜102-103 pfu, approximately four orders of magnitude more frequently than modern-day Earth.

  5. THE ACS NEARBY GALAXY SURVEY TREASURY. IX. CONSTRAINING ASYMPTOTIC GIANT BRANCH EVOLUTION WITH OLD METAL-POOR GALAXIES

    SciTech Connect

    Girardi, Leo; Williams, Benjamin F.; Gilbert, Karoline M.; Rosenfield, Philip; Dalcanton, Julianne J.; Marigo, Paola; Boyer, Martha L.; Dolphin, Andrew; Weisz, Daniel R.; Skillman, Evan; Melbourne, Jason; Olsen, Knut A. G.; Seth, Anil C.

    2010-12-01

    In an attempt to constrain evolutionary models of the asymptotic giant branch (AGB) phase at the limit of low masses and low metallicities, we have examined the luminosity functions and number ratios between AGB and red giant branch (RGB) stars from a sample of resolved galaxies from the ACS Nearby Galaxy Survey Treasury. This database provides Hubble Space Telescope optical photometry together with maps of completeness, photometric errors, and star formation histories for dozens of galaxies within 4 Mpc. We select 12 galaxies characterized by predominantly metal-poor populations as indicated by a very steep and blue RGB, and which do not present any indication of recent star formation in their color-magnitude diagrams. Thousands of AGB stars brighter than the tip of the RGB (TRGB) are present in the sample (between 60 and 400 per galaxy), hence, the Poisson noise has little impact in our measurements of the AGB/RGB ratio. We model the photometric data with a few sets of thermally pulsing AGB (TP-AGB) evolutionary models with different prescriptions for the mass loss. This technique allows us to set stringent constraints on the TP-AGB models of low-mass, metal-poor stars (with M < 1.5 M{sub sun}, [Fe/H]{approx}< -1.0). Indeed, those which satisfactorily reproduce the observed AGB/RGB ratios have TP-AGB lifetimes between 1.2 and 1.8 Myr, and finish their nuclear burning lives with masses between 0.51 and 0.55 M{sub sun}. This is also in good agreement with recent observations of white dwarf masses in the M4 old globular cluster. These constraints can be added to those already derived from Magellanic Cloud star clusters as important mileposts in the arduous process of calibrating AGB evolutionary models.

  6. The panchromatic Hubble Andromeda Treasury. VI. The reliability of far-ultraviolet flux as a star formation tracer on subkiloparsec scales

    SciTech Connect

    Simones, Jacob E.; Skillman, Evan D.; Weisz, Daniel R.; Johnson, Benjamin D.; Bell, Eric F.; Bianchi, Luciana; Dalcanton, Julianne J.; Williams, Benjamin F.; Dolphin, Andrew E. E-mail: skillman@astro.umn.edu E-mail: bjohnso6@ucsc.edu E-mail: ben@astro.washington.edu E-mail: bianchi@pha.jhu.edu

    2014-06-10

    We have used optical observations of resolved stars from the Panchromatic Hubble Andromeda Treasury to measure the recent (<500 Myr) star formation histories (SFHs) of 33 far-UV (FUV)-bright regions in M31. The region areas ranged from ∼10{sup 4} to 10{sup 6} pc{sup 2}, which allowed us to test the reliability of FUV flux as a tracer of recent star formation on subkiloparsec scales. The star formation rates (SFRs) derived from the extinction-corrected observed FUV fluxes were, on average, consistent with the 100 Myr mean SFRs of the SFHs to within the 1σ scatter. Overall, the scatter was larger than the uncertainties in the SFRs and particularly evident among the smallest regions. The scatter was consistent with an even combination of discrete sampling of the initial mass function and high variability in the SFHs. This result demonstrates the importance of satisfying both the full-IMF and the constant-SFR assumptions for obtaining precise SFR estimates from FUV flux. Assuming a robust FUV extinction correction, we estimate that a factor of 2.5 uncertainty can be expected in FUV-based SFRs for regions smaller than 10{sup 5} pc{sup 2} or a few hundred parsecs. We also examined ages and masses derived from UV flux under the common assumption that the regions are simple stellar populations (SSPs). The SFHs showed that most of the regions are not SSPs, and the age and mass estimates were correspondingly discrepant from the SFHs. For those regions with SSP-like SFHs, we found mean discrepancies of 10 Myr in age and a factor of 3-4 in mass. It was not possible to distinguish the SSP-like regions from the others based on integrated FUV flux.

  7. The MUSCLES Treasury Survey. II. Intrinsic LYα and Extreme Ultraviolet Spectra of K and M Dwarfs with Exoplanets*

    NASA Astrophysics Data System (ADS)

    Youngblood, Allison; France, Kevin; Parke Loyd, R. O.; Linsky, Jeffrey L.; Redfield, Seth; Schneider, P. Christian; Wood, Brian E.; Brown, Alexander; Froning, Cynthia; Miguel, Yamila; Rugheimer, Sarah; Walkowicz, Lucianne

    2016-06-01

    The ultraviolet (UV) spectral energy distributions (SEDs) of low-mass (K- and M-type) stars play a critical role in the heating and chemistry of exoplanet atmospheres, but are not observationally well-constrained. Direct observations of the intrinsic flux of the Lyα line (the dominant source of UV photons from low-mass stars) are challenging, as interstellar H i absorbs the entire line core for even the closest stars. To address the existing gap in empirical constraints on the UV flux of K and M dwarfs, the MUSCLES Hubble Space Telescope Treasury Survey has obtained UV observations of 11 nearby M and K dwarfs hosting exoplanets. This paper presents the Lyα and extreme-UV spectral reconstructions for the MUSCLES targets. Most targets are optically inactive, but all exhibit significant UV activity. We use a Markov Chain Monte Carlo technique to correct the observed Lyα profiles for interstellar absorption, and we employ empirical relations to compute the extreme-UV SED from the intrinsic Lyα flux in ˜100 Å bins from 100-1170 Å. The reconstructed Lyα profiles have 300 km s-1 broad cores, while >1% of the total intrinsic Lyα flux is measured in extended wings between 300 and 1200 km s-1. The Lyα surface flux positively correlates with the Mg ii surface flux and negatively correlates with the stellar rotation period. Stars with larger Lyα surface flux also tend to have larger surface flux in ions formed at higher temperatures, but these correlations remain statistically insignificant in our sample of 11 stars. We also present H i column density measurements for 10 new sightlines through the local interstellar medium. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the data archive at the Space Telescope Science Institute. STScI is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555.

  8. The History of Star Formation in Galaxy Disks in the Local Volume as Measured by the Advanced Camera for Surveys Nearby Galaxy Survey Treasury

    NASA Astrophysics Data System (ADS)

    Williams, Benjamin F.; Dalcanton, Julianne J.; Johnson, L. C.; Weisz, Daniel R.; Seth, Anil C.; Dolphin, Andrew; Gilbert, Karoline M.; Skillman, Evan; Rosema, Keith; Gogarten, Stephanie M.; Holtzman, Jon; de Jong, Roelof S.

    2011-06-01

    We present a measurement of the age distribution of stars residing in spiral disks and dwarf galaxies. We derive a complete star formation history of the ~140 Mpc3 covered by the volume-limited sample of galaxies in the Advanced Camera for Surveys (ACS) Nearby Galaxy Survey Treasury (ANGST). The total star formation rate density history (ρSFR(t)) is dominated by the large spirals in the volume, although the sample consists mainly of dwarf galaxies. Our ρSFR(t) shows a factor of ~3 drop at z ~ 2, in approximate agreement with results from other measurement techniques. While our results show that the overall ρSFR(t) has decreased since z ~ 1, the measured rates during this epoch are higher than those obtained from other measurement techniques. This enhanced recent star formation rate appears to be largely due to an increase in the fraction of star formation contained in low-mass disks at recent times. Finally, our results indicate that despite the differences at recent times, the epoch of formation of ~50% of the stellar mass in dwarf galaxies was similar to that of ~50% of the stellar mass in large spiral galaxies (z >~ 2), despite the observed galaxy-to-galaxy diversity among the dwarfs.

  9. The ACS Nearby Galaxy Survey Treasury. VIII. The Global Star Formation Histories of 60 Dwarf Galaxies in the Local Volume

    NASA Astrophysics Data System (ADS)

    Weisz, Daniel R.; Dalcanton, Julianne J.; Williams, Benjamin F.; Gilbert, Karoline M.; Skillman, Evan D.; Seth, Anil C.; Dolphin, Andrew E.; McQuinn, Kristen B. W.; Gogarten, Stephanie M.; Holtzman, Jon; Rosema, Keith; Cole, Andrew; Karachentsev, Igor D.; Zaritsky, Dennis

    2011-09-01

    We present uniformly measured star formation histories (SFHs) of 60 nearby (D <~ 4 Mpc) dwarf galaxies based on color-magnitude diagrams of resolved stellar populations from images taken with the Hubble Space Telescope and analyzed as part of the ACS Nearby Galaxy Survey Treasury program (ANGST). This volume-limited sample contains 12 dwarf spheroidal (dSph)/dwarf elliptical (dE), 5 dwarf spiral, 28 dwarf irregular (dI), 12 dSph/dI (transition), and 3 tidal dwarf galaxies. The sample spans a range of ~10 mag in MB and covers a wide range of environments, from highly interacting to truly isolated. From the best-fit SFHs, we find three significant results for dwarf galaxies in the ANGST volume: (1) the majority of dwarf galaxies formed the bulk of their mass prior to z ~ 1, regardless of current morphological type; (2) the mean SFHs of dIs, transition dwarf galaxies (dTrans), and dSphs are similar over most of cosmic time, and only begin to diverge a few Gyr ago, with the clearest differences between the three appearing during the most recent 1 Gyr and (3) the SFHs are complex and the mean values are inconsistent with simple SFH models, e.g., single bursts, constant star formation rates (SFRs), or smooth, exponentially declining SFRs. The mean SFHs show clear divergence from the cosmic SFH at z <~ 0.7, which could be evidence that low-mass systems have experienced delayed star formation relative to more massive galaxies. The sample shows a strong density-morphology relationship, such that the dSphs in the sample are less isolated than the dIs. We find that the transition from a gas-rich to gas-poor galaxy cannot be solely due to internal mechanisms such as stellar feedback, and instead is likely the result of external mechanisms, e.g., ram pressure and tidal stripping and tidal forces. In terms of their environments, SFHs, and gas fractions, the majority of the dTrans appear to be low-mass dIs that simply lack Hα emission, similar to Local Group (LG) dTrans DDO 210

  10. The ELM Survey. VI. Eleven New Double Degenerates

    NASA Astrophysics Data System (ADS)

    Gianninas, A.; Kilic, Mukremin; Brown, Warren R.; Canton, Paul; Kenyon, Scott J.

    2015-10-01

    We present the discovery of 11 new double degenerate systems containing extremely low-mass white dwarfs (ELM WDs). Our radial velocity observations confirm that all of the targets have orbital periods ≤slant 1 day. We perform spectroscopic fits and provide a complete set of physical and binary parameters. We review and compare recent evolutionary calculations and estimate that the systematic uncertainty in our mass determinations due to differences in the evolutionary models is small (≈ 0.01 M⊙). Five of the new systems will merge due to gravitational wave radiation within a Hubble time, bringing the total number of merger systems found in the ELM Survey to 38. We examine the ensemble properties of the current sample of ELM WD binaries, including the period distribution as a function of effective temperature, and the implications for the future evolution of these systems. We also revisit the empirical boundaries of instability strip of ELM WDs and identify new pulsating ELM WD candidates. Finally, we consider the kinematic properties of our sample of ELM WDs and estimate that a significant fraction of the WDs from the ELM Survey are members of the Galactic halo. Based on observations obtained at the MMT Observatory, a joint facility of the Smithsonian Institution and the University of Arizona.

  11. Rebuilding the Treasury System.

    ERIC Educational Resources Information Center

    Speare, Jon K.

    1999-01-01

    Offers guidelines to help college treasury managers rebuild their treasury system by redefining goals, moving away from traditional principles, and embracing new treasury principles. Suggests a four-step process (moving away from paper, reducing focus on float management, maximizing resources, choosing effective providers) incorporating the new…

  12. Coronal gas in the Galaxy. I - A new survey of interstellar O VI

    NASA Technical Reports Server (NTRS)

    Jenkins, E. B.

    1978-01-01

    Ultraviolet spectra of 40 O- and B-type stars have been intensively scanned in the vicinity of the O VI transitions at 1032 and 1038 A with the Copernicus satellite. This survey of the high-temperature (log T about 5.5) phase of interstellar gas is an extension of the earlier observations of interstellar O VI by Jenkins and Meloy (1974), bringing the total coverage up to 72 stars. Except for a few distant stars, the overall quality of the present data surpasses that of the earlier work. Plots of absorption optical depths versus radial velocity are presented for both transitions in each star. Total column densities (or their upper limits), velocity centroids, and velocity widths have been extracted from the profiles and tabulated, with the results of Jenkins and Meloy (1974) included. Qualitatively, the highly variable O VI densities and velocities seem to exhibit no systematic patterns or regional trends; there is no recognizable correlation in the behavior of coronal gas with pronounced features of galactic structure.

  13. Applicability of NASA Polar Technologies to British Antarctic Survey Halley VI Research Station

    NASA Technical Reports Server (NTRS)

    Flynn, Michael

    2005-01-01

    From 1993 through 1997 NASA and the National Science Foundation (NSF), developed a variety of environmental infrastructure technologies for use at the Amundsen-Scott South Pole Station. The objective of this program was to reduce the cost of operating the South Pole Station, reduce the environmental impact of the Station, and to increase the quality of life for Station inhabitants. The result of this program was the development of a set of sustainability technologies designed specifically for Polar applications. In the intervening eight years many of the technologies developed through this program have been commercialized and tested in extreme environments and are now available for use throughout Antarctica and circumpolar north. The objective of this document is to provide information covering technologies that might also be applicable to the British Antarctic Survey s (BAS) proposed new Halley VI Research Station. All technologies described are commercially available.

  14. Microwave tomography enhanced GPR surveys in Centaur’s Domus, Regio VI of Pompeii, Italy

    NASA Astrophysics Data System (ADS)

    Catapano, I.; Crocco, L.; Di Napoli, R.; Soldovieri, F.; Brancaccio, A.; Pesando, F.; Aiello, A.

    2012-08-01

    The archaeological area of Pompeii (Naples, Italy) is known worldwide as one of the most remarkable examples of a Roman Empire town, but its origins are prior to the Roman age and there is a huge archeological interest in discovering the history of the forma urbis. With respect to this framework, the paper presents results from microwave tomography enhanced ground penetrating radar (GPR) surveys carried out in the Centaur’s Domus, Regio VI, one of the most ancient housing areas of Pompeii. The GPR prospections aimed at addressing and driving the archeological excavation campaign performed in this area in October 2010. The results of stratigraphic assays are used to assess the reliability of the tomographic images obtained.

  15. The MUSCLES Treasury Survey: Intrinsic Lyα Profile Reconstructions and UV, X-ray, and Optical Correlations of Low-mass Exoplanet Host Stars

    NASA Astrophysics Data System (ADS)

    Youngblood, Allison; France, Kevin; Parke Loyd, R. O.

    2016-01-01

    UV stellar radiation can significantly impact planetary atmospheres through heating and photochemistry, even regulating production of potential biomarkers. Cool stars emit the majority of their UV radiation in the form of emission lines, and the incident UV radiation on close-in habitable-zone planets is significant. Lyα (1215.67 Å) dominates the 912 - 3200 Å spectrum of cool stars, but strong absorption from the interstellar medium (ISM) makes direct observations of the intrinsic Lyα emission of even nearby stars challenging. The MUSCLES Hubble Space Telescope Treasury Survey (Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary Systems) has completed observations of 7 M and 4 K stars hosting exoplanets (d < 22 pc) with simultaneous X-ray and ground-based optical spectroscopy for many of the targets. We have reconstructed the intrinsic Lyα profiles using an MCMC technique and used the results to estimate the extreme ultraviolet (100 - 911 Å) spectrum. We also present empirical relations between chromospheric UV and optical lines, e.g., Lyα, Mg II, Ca II H & K, and Hα, for use when direct UV observations of low-mass exoplanet host stars are not possible. The spectra presented here will be made publicly available through MAST to support exoplanet atmosphere modeling.

  16. Highlights from the Center for Adaptive Optics Treasury Survey of Distant Galaxies, Including H-band Photometry of a z=1.3 Supernova

    NASA Astrophysics Data System (ADS)

    Melbourne, J.; Barczys, M.; Wright, S. A.; Max, C. E.; Larkin, J.; Koo, D. C.; Perlmutter, S.; Steinbring, E.; Metevier, A.; Chun, M.

    2005-12-01

    The Center for Adaptive Optics Treasury Survey (CATS) is observing the deep HST galaxy fields (e.g., GOODS-N and S, COSMOS, GEMS, and EGS) with high-resolution near-infrared imaging from ground-based adaptive optics on large telescopes. Initial results from the first ten Keck laser guide star pointings are presented. Highlights include, 1) H-band (rest-frame R) photometry over maximum of a z=1.32 Type Ia supernova from the HST cluster supernova search of Perlmutter et al. (see poster of Dawson et al.); 2) a near-infrared study of small bulges of distant disk galaxies (z ˜0.6); 3) Stellar population synthesis models of AGN cores to z=1; and 4) Detection of lensed arcs around a z=0.20 cluster. CATS plans its first public data release in Fall 2006. This work is funded by the NSF Science and Technology Center for Adaptive Optics, managed by the University of California at Santa Cruz under the cooperative agreement No. AST-9876783.

  17. Survey of Land-Grant Colleges and Universities. Bulletin, 1930, No. 9. Volume II. [Part I - Part VI

    ERIC Educational Resources Information Center

    Office of Education, United States Department of the Interior, 1930

    1930-01-01

    The attached document covers the initial sections of the second volume of the Survey of Land-Grant Colleges and Universities, from Part I to Part VI. Part I, Arts and sciences, contains the following chapters: (1) Introduction; (2) Arts and science organization; (3) Specialization; (4) Enrollments and salaries; (5) Articulation with secondary…

  18. THE SPITZER SURVEY OF INTERSTELLAR CLOUDS IN THE GOULD BELT. IV. LUPUS V AND VI OBSERVED WITH IRAC AND MIPS

    SciTech Connect

    Spezzi, Loredana; Vernazza, Pierre; Merin, Bruno; Allen, Lori E.; Evans, Neal J. II; Harvey, Paul M.; Joergensen, Jes K.; Bourke, Tyler L.; Peterson, Dawn; Cieza, Lucas A.; Dunham, Michael M.; Huard, Tracy L.; Tothill, Nick F. H.

    2011-04-01

    We present Gould's Belt (GB) Spitzer IRAC and MIPS observations of the Lupus V and VI clouds and discuss them in combination with near-infrared (2MASS) data. Our observations complement those obtained for other Lupus clouds within the frame of the Spitzer 'Core to Disk' (c2d) Legacy Survey. We found 43 young stellar object (YSO) candidates in Lupus V and 45 in Lupus VI, including two transition disks, using the standard c2d/GB selection method. None of these sources was classified as a pre-main-sequence star from previous optical, near-IR, and X-ray surveys. A large majority of these YSO candidates appear to be surrounded by thin disks (Class III; {approx}79% in Lupus V and {approx}87% in Lupus VI). These Class III abundances differ significantly from those observed for the other Lupus clouds and c2d/GB surveyed star-forming regions, where objects with optically thick disks (Class II) dominate the young population. We investigate various scenarios that can explain this discrepancy. In particular, we show that disk photoevaporation due to nearby OB stars is not responsible for the high fraction of Class III objects. The gas surface densities measured for Lupus V and VI lie below the star formation threshold (A{sub V} {approx} 8.6 mag), while this is not the case for other Lupus clouds. Thus, few Myr older age for the YSOs in Lupus V and VI with respect to other Lupus clouds is the most likely explanation of the high fraction of Class III objects in these clouds, while a higher characteristic stellar mass might be a contributing factor. Better constraints on the age and binary fraction of the Lupus clouds might solve the puzzle but require further observations.

  19. THE ACS NEARBY GALAXY SURVEY TREASURY. VII. THE NGC 4214 STARBURST AND THE EFFECTS OF STAR FORMATION HISTORY ON DWARF MORPHOLOGY

    SciTech Connect

    Williams, Benjamin F.; Dalcanton, Julianne J.; Gilbert, Karoline M.; Weisz, Daniel R.; Seth, Anil C.; Skillman, Evan D.; Dolphin, Andrew E. E-mail: jd@astro.washington.edu E-mail: dweisz@astro.washington.edu E-mail: skillman@astro.umn.edu

    2011-07-01

    We present deep Hubble Space Telescope WFPC2 optical observations obtained as part of the ACS Nearby Galaxy Survey Treasury as well as early release Wide Field Camera 3 ultraviolet and infrared observations of the nearby dwarf starbursting galaxy NGC 4214. Our data provide a detailed example of how covering such a broad range in wavelength provides a powerful tool for constraining the physical properties of stellar populations. The deepest data reach the ancient red clump at M{sub F814W} {approx} - 0.2. All of the optical data reach the main-sequence turnoff for stars younger than {approx}300 Myr and the blue He-burning sequence for stars younger than 500 Myr. The full color-magnitude diagram (CMD) fitting analysis shows that all three fields in our data set are consistent with {approx}75% of the stellar mass being older than 8 Gyr, in spite of showing a wide range in star formation rates at present. Thus, our results suggest that the scale length of NGC 4214 has remained relatively constant for many gigayears. As previously noted by others, we also find the galaxy has recently ramped up production consistent with its bright UV luminosity and its population of UV-bright massive stars. In the central field we find UV point sources with F336W magnitudes as bright as -9.9. These are as bright as stars with masses of at least 52-56 M{sub sun} and ages near 4 Myr in stellar evolution models. Assuming a standard initial mass function, our CMD is well fitted by an increase in star formation rate beginning 100 Myr ago. The stellar populations of this late-type dwarf are compared with those of NGC 404, an early-type dwarf that is also the most massive galaxy in its local environment. The late-type dwarf appears to have a similar high fraction of ancient stars, suggesting that these dominant galaxies may form at early epochs even if they have low total mass and very different present-day morphologies.

  20. THE PANCHROMATIC HUBBLE ANDROMEDA TREASURY

    SciTech Connect

    Dalcanton, Julianne J.; Williams, Benjamin F.; Rosenfield, Philip; Weisz, Daniel R.; Gilbert, Karoline M.; Gogarten, Stephanie M.; Lang, Dustin; Lauer, Tod R.; Dong Hui; Kalirai, Jason S.; Boyer, Martha L.; Gordon, Karl D.; Seth, Anil C.; Dolphin, Andrew; Bell, Eric F.; Bianchi, Luciana C.; Caldwell, Nelson; Dorman, Claire E.; Guhathakurta, Puragra; and others

    2012-06-01

    The Panchromatic Hubble Andromeda Treasury is an ongoing Hubble Space Telescope Multi-Cycle Treasury program to image {approx}1/3 of M31's star-forming disk in six filters, spanning from the ultraviolet (UV) to the near-infrared (NIR). We use the Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) to resolve the galaxy into millions of individual stars with projected radii from 0 to 20 kpc. The full survey will cover a contiguous 0.5 deg{sup 2}area in 828 orbits. Imaging is being obtained in the F275W and F336W filters on the WFC3/UVIS camera, F475W and F814W on ACS/WFC, and F110W and F160W on WFC3/IR. The resulting wavelength coverage gives excellent constraints on stellar temperature, bolometric luminosity, and extinction for most spectral types. The data produce photometry with a signal-to-noise ratio of 4 at m{sub F275W} = 25.1, m{sub F336W} = 24.9, m{sub F475W} = 27.9, m{sub F814W} = 27.1, m{sub F110W} = 25.5, and m{sub F160W} = 24.6 for single pointings in the uncrowded outer disk; in the inner disk, however, the optical and NIR data are crowding limited, and the deepest reliable magnitudes are up to 5 mag brighter. Observations are carried out in two orbits per pointing, split between WFC3/UVIS and WFC3/IR cameras in primary mode, with ACS/WFC run in parallel. All pointings are dithered to produce Nyquist-sampled images in F475W, F814W, and F160W. We describe the observing strategy, photometry, astrometry, and data products available for the survey, along with extensive testing of photometric stability, crowding errors, spatially dependent photometric biases, and telescope pointing control. We also report on initial fits to the structure of M31's disk, derived from the density of red giant branch stars, in a way that is independent of assumed mass-to-light ratios and is robust to variations in dust extinction. These fits also show that the 10 kpc ring is not just a region of enhanced recent star formation, but is instead a dynamical structure

  1. The Panchromatic Hubble Andromeda Treasury

    NASA Astrophysics Data System (ADS)

    Dalcanton, Julianne J.; Williams, Benjamin F.; Lang, Dustin; Lauer, Tod R.; Kalirai, Jason S.; Seth, Anil C.; Dolphin, Andrew; Rosenfield, Philip; Weisz, Daniel R.; Bell, Eric F.; Bianchi, Luciana C.; Boyer, Martha L.; Caldwell, Nelson; Dong, Hui; Dorman, Claire E.; Gilbert, Karoline M.; Girardi, Léo; Gogarten, Stephanie M.; Gordon, Karl D.; Guhathakurta, Puragra; Hodge, Paul W.; Holtzman, Jon A.; Johnson, L. Clifton; Larsen, Søren S.; Lewis, Alexia; Melbourne, Jason L.; Olsen, Knut A. G.; Rix, Hans-Walter; Rosema, Keith; Saha, Abhijit; Sarajedini, Ata; Skillman, Evan D.; Stanek, Krzysztof Z.

    2012-06-01

    The Panchromatic Hubble Andromeda Treasury is an ongoing Hubble Space Telescope Multi-Cycle Treasury program to image ~1/3 of M31's star-forming disk in six filters, spanning from the ultraviolet (UV) to the near-infrared (NIR). We use the Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) to resolve the galaxy into millions of individual stars with projected radii from 0 to 20 kpc. The full survey will cover a contiguous 0.5 deg2area in 828 orbits. Imaging is being obtained in the F275W and F336W filters on the WFC3/UVIS camera, F475W and F814W on ACS/WFC, and F110W and F160W on WFC3/IR. The resulting wavelength coverage gives excellent constraints on stellar temperature, bolometric luminosity, and extinction for most spectral types. The data produce photometry with a signal-to-noise ratio of 4 at m F275W = 25.1, m F336W = 24.9, m F475W = 27.9, m F814W = 27.1, m F110W = 25.5, and m F160W = 24.6 for single pointings in the uncrowded outer disk; in the inner disk, however, the optical and NIR data are crowding limited, and the deepest reliable magnitudes are up to 5 mag brighter. Observations are carried out in two orbits per pointing, split between WFC3/UVIS and WFC3/IR cameras in primary mode, with ACS/WFC run in parallel. All pointings are dithered to produce Nyquist-sampled images in F475W, F814W, and F160W. We describe the observing strategy, photometry, astrometry, and data products available for the survey, along with extensive testing of photometric stability, crowding errors, spatially dependent photometric biases, and telescope pointing control. We also report on initial fits to the structure of M31's disk, derived from the density of red giant branch stars, in a way that is independent of assumed mass-to-light ratios and is robust to variations in dust extinction. These fits also show that the 10 kpc ring is not just a region of enhanced recent star formation, but is instead a dynamical structure containing a significant overdensity of stars

  2. 26 CFR 301.6312-1 - Treasury certificates of indebtedness, Treasury notes, and Treasury bills acceptable in payment...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... notes, and Treasury bills acceptable in payment of internal revenue taxes or stamps. 301.6312-1 Section... certificates of indebtedness, Treasury notes, and Treasury bills acceptable in payment of internal revenue taxes or stamps. (a) Treasury certificates of indebtedness, Treasury notes, or Treasury bills of any...

  3. 26 CFR 301.6312-1 - Treasury certificates of indebtedness, Treasury notes, and Treasury bills acceptable in payment...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... notes, and Treasury bills acceptable in payment of internal revenue taxes or stamps. 301.6312-1 Section... certificates of indebtedness, Treasury notes, and Treasury bills acceptable in payment of internal revenue taxes or stamps. (a) Treasury certificates of indebtedness, Treasury notes, or Treasury bills of any...

  4. 31 CFR 5.7 - When will Treasury entities compromise a Treasury debt?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false When will Treasury entities compromise a Treasury debt? 5.7 Section 5.7 Money and Finance: Treasury Office of the Secretary of the Treasury TREASURY DEBT COLLECTION Procedures To Collect Treasury Debts § 5.7 When will Treasury...

  5. 31 CFR 5.15 - How will Treasury entities refer Treasury debts to private collection agencies?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false How will Treasury entities refer Treasury debts to private collection agencies? 5.15 Section 5.15 Money and Finance: Treasury Office of the Secretary of the Treasury TREASURY DEBT COLLECTION Procedures To Collect Treasury Debts § 5.15 How...

  6. The XXL Survey. VI. The 1000 brightest X-ray point sources

    NASA Astrophysics Data System (ADS)

    Fotopoulou, S.; Pacaud, F.; Paltani, S.; Ranalli, P.; Ramos-Ceja, M. E.; Faccioli, L.; Plionis, M.; Adami, C.; Bongiorno, A.; Brusa, M.; Chiappetti, L.; Desai, S.; Elyiv, A.; Lidman, C.; Melnyk, O.; Pierre, M.; Piconcelli, E.; Vignali, C.; Alis, S.; Ardila, F.; Arnouts, S.; Baldry, I.; Bremer, M.; Eckert, D.; Guennou, L.; Horellou, C.; Iovino, A.; Koulouridis, E.; Liske, J.; Maurogordato, S.; Menanteau, F.; Mohr, J. J.; Owers, M.; Poggianti, B.; Pompei, E.; Sadibekova, T.; Stanford, A.; Tuffs, R.; Willis, J.

    2016-06-01

    Context. X-ray extragalactic surveys are ideal laboratories for the study of the evolution and clustering of active galactic nuclei (AGN). Usually, a combination of deep and wide surveys is necessary to create a complete picture of the population. Deep X-ray surveys provide the faint population at high redshift, while wide surveys provide the rare bright sources. Nevertheless, very wide area surveys often lack the ancillary information available for modern deep surveys. The XXL survey spans two fields of a combined 50 deg2 observed for more than 6Ms with XMM-Newton, occupying the parameter space that lies between deep surveys and very wide area surveys; at the same time it benefits from a wealth of ancillary data. Aims: This paper marks the first release of the XXL point source catalogue including four optical photometry bands and redshift estimates. Our sample is selected in the 2 - 10 keV energy band with the goal of providing a sizable sample useful for AGN studies. The limiting flux is F2 - 10 keV = 4.8 × 10-14 erg s-1 cm-2. Methods: We use both public and proprietary data sets to identify the counterparts of the X-ray point-like sources by means of a likelihood ratio test. We improve upon the photometric redshift determination for AGN by applying a Random Forest classification trained to identify for each object the optimal photometric redshift category (passive, star forming, starburst, AGN, quasi-stellar objects (QSO)). Additionally, we assign a probability to each source that indicates whether it might be a star or an outlier. We apply Bayesian analysis to model the X-ray spectra assuming a power-law model with the presence of an absorbing medium. Results: We find that the average unabsorbed photon index is ⟨Γ⟩ = 1.85 ± 0.40 while the average hydrogen column density is log ⟨NH⟩ = 21.07 ± 1.2 cm-2. We find no trend of Γ or NH with redshift and a fraction of 26% absorbed sources (log NH> 22) consistent with the literature on bright sources (log

  7. A Survey of Metal Lines at High-redshift. I. SDSS Absorption Line Studies—the Methodology and First Search Results for O VI

    NASA Astrophysics Data System (ADS)

    Frank, S.; Mathur, S.; Pieri, M.; York, D. G.

    2010-09-01

    We report the results of a systematic search for signatures of metal lines in quasar spectra of the Sloan Digital Sky Survey (SDSS) data release 3 (DR3), focusing on finding intervening absorbers via detection of their O VI doublet. Here, we present the search algorithm and criteria for distinguishing candidates from spurious Lyα forest lines. In addition, we compare our findings with simulations of the Lyα forest in order to estimate the detectability of O VI doublets over various redshift intervals. We have obtained a sample of 1756 O VI doublet candidates with rest-frame equivalent width (EW) >=0.05 Å in 855 active galactic nuclei spectra (out of 3702 objects with redshifts in the accessible range for O VI detection). This sample is further subdivided into three groups according to the likelihood of being real and the potential for follow-up observation of the candidate. The group with the cleanest and most secure candidates is comprised of 145 candidates. Sixty-nine of these reside at a velocity separation >=5000 km s-1 from the QSO and can therefore be classified tentatively as intervening absorbers. Most of these absorbers have not been picked up by earlier, automated QSO absorption line detection algorithms. This sample increases the number of known O VI absorbers at redshifts beyond z abs>= 2.7 substantially.

  8. A SURVEY OF METAL LINES AT HIGH-REDSHIFT. I. SDSS ABSORPTION LINE STUDIES- THE METHODOLOGY AND FIRST SEARCH RESULTS FOR O VI

    SciTech Connect

    Frank, S.; Mathur, S.; Pieri, M.; York, D. G.

    2010-09-15

    We report the results of a systematic search for signatures of metal lines in quasar spectra of the Sloan Digital Sky Survey (SDSS) data release 3 (DR3), focusing on finding intervening absorbers via detection of their O VI doublet. Here, we present the search algorithm and criteria for distinguishing candidates from spurious Ly{alpha} forest lines. In addition, we compare our findings with simulations of the Ly{alpha} forest in order to estimate the detectability of O VI doublets over various redshift intervals. We have obtained a sample of 1756 O VI doublet candidates with rest-frame equivalent width (EW) {>=}0.05 A in 855 active galactic nuclei spectra (out of 3702 objects with redshifts in the accessible range for O VI detection). This sample is further subdivided into three groups according to the likelihood of being real and the potential for follow-up observation of the candidate. The group with the cleanest and most secure candidates is comprised of 145 candidates. Sixty-nine of these reside at a velocity separation {>=}5000 km s{sup -1} from the QSO and can therefore be classified tentatively as intervening absorbers. Most of these absorbers have not been picked up by earlier, automated QSO absorption line detection algorithms. This sample increases the number of known O VI absorbers at redshifts beyond z{sub abs{>=}} 2.7 substantially.

  9. The Hubble Tarantula Treasury Project

    NASA Astrophysics Data System (ADS)

    Sabbi, Elena; Lennon, D. J.; Anderson, J.; Van Der Marel, R. P.; Aloisi, A.; Boyer, M. L.; Cignoni, M.; De Marchi, G.; de Mink, S. E.; Evans, C. J.; Gallagher, J. S.; Gordon, K. D.; Gouliermis, D.; Grebel, E.; Koekemoer, A. M.; Larsen, S. S.; Panagia, N.; Ryon, J. E.; Smith, L. J.; Tosi, M.; Zaritsky, D. F.

    2014-01-01

    The Tarantula Nebula (a.k.a. 30 Doradus) in the Large Magellanic Cloud is one of the most famous objects in astronomy, with first astronomical references being more than 150 years old. Today the Tarantula Nebula and its ionizing cluster R136 are considered one of the few known starburst regions in the Local Group and an ideal test bed to investigate the temporal and spatial evolution of a prototypical starburst on a sub-cluster scale. The Hubble Tarantula Treasury Project (HTTP) is a panchromatic imaging survey of the stellar populations and ionized gas in the Tarantula Nebula that reaches into the sub-solar mass regime (<0.5 M⊙). HTTP utilizes the capability of the Hubble Space Telescope to operate the Advanced Camera for Surveys and the Wide Field Camera 3 in parallel to study this remarkable region in the near-ultraviolet, optical, and near-infrared spectral regions, including narrow-band Hα images. The program was awarded 60 orbits of HST time and is built on the existing 30 orbits monochromatic proper motion program GO-12499 (PI Lennon). The combination of all these bands provides a unique view of the region: the resulting maps of the Tarantula’s stellar content provide the basis for investigations of star formation in an environment resembling the extreme conditions found in starburst galaxies and in the early universe. At the same time access to detailed properties of individual stars allows us to begin to reconstruct the temporal and spatial evolution of the Tarantula Nebula over space and time on a sub-parsec scale. We will deliver high-level data products (i.e. star and cluster catalogs, co-registered stacked images). HTTP will become the definitive catalog of the field, and have lasting value for future. HTTP also has an educational and public outreach component aimed to stimulate interest in STEM disciplines among people with visual impairments. “Reach for the Stars: Touch, Look, Listen, Learn” is a free eBook that explains how stars form and

  10. 31 CFR 5.14 - How will Treasury entities report Treasury debts to credit bureaus?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... entities report Treasury debts to credit bureaus? Treasury entities shall report delinquent Treasury debts... Financial Management Service to report to credit bureaus those delinquent Treasury debts that have been... 31 Money and Finance: Treasury 1 2013-07-01 2013-07-01 false How will Treasury entities report...

  11. 31 CFR 5.14 - How will Treasury entities report Treasury debts to credit bureaus?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... entities report Treasury debts to credit bureaus? Treasury entities shall report delinquent Treasury debts... Financial Management Service to report to credit bureaus those delinquent Treasury debts that have been... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false How will Treasury entities report...

  12. 31 CFR 5.14 - How will Treasury entities report Treasury debts to credit bureaus?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... entities report Treasury debts to credit bureaus? Treasury entities shall report delinquent Treasury debts... Financial Management Service to report to credit bureaus those delinquent Treasury debts that have been... 31 Money and Finance: Treasury 1 2014-07-01 2014-07-01 false How will Treasury entities report...

  13. 31 CFR 5.14 - How will Treasury entities report Treasury debts to credit bureaus?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... entities report Treasury debts to credit bureaus? Treasury entities shall report delinquent Treasury debts... Financial Management Service to report to credit bureaus those delinquent Treasury debts that have been... 31 Money and Finance: Treasury 1 2011-07-01 2011-07-01 false How will Treasury entities report...

  14. 31 CFR 5.14 - How will Treasury entities report Treasury debts to credit bureaus?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... entities report Treasury debts to credit bureaus? Treasury entities shall report delinquent Treasury debts... Financial Management Service to report to credit bureaus those delinquent Treasury debts that have been... 31 Money and Finance: Treasury 1 2012-07-01 2012-07-01 false How will Treasury entities report...

  15. The ACS Nearby Galaxy Survey Treasury. II. Young Stars and their Relation to Hα and UV Emission Timescales in the M81 Outer Disk

    NASA Astrophysics Data System (ADS)

    Gogarten, Stephanie M.; Dalcanton, Julianne J.; Williams, Benjamin F.; Seth, Anil C.; Dolphin, Andrew; Weisz, Daniel; Skillman, Evan; Holtzman, Jon; Cole, Andrew; Girardi, Leo; de Jong, Roelof S.; Karachentsev, Igor D.; Olsen, Knut; Rosema, Keith

    2009-01-01

    We have obtained resolved stellar photometry from Hubble Space Telescope Advanced Camera for Surveys observations of a field in the outer disk of M81 as part of ANGST. Motivated by the recent discovery of extended UV disks around many nearby spiral galaxies, we use the observed stellar population to derive the recent star formation histories of five ~ 0.5 kpc-sized regions within this field. These regions were selected on the basis of their UV luminosity from GALEX and include two H II regions, two regions that are UV-bright but Hα-faint, and one "control" region faint in both UV and Hα. We estimate our effective star formation rate detection limit at ~2 × 10-4 M sun yr-1, which is lower than that of GALEX for regions of this size. As expected, the H II regions contain massive main-sequence stars (in the mass range 18-27 M sun, based on our best extinction estimates), while similar massive main-sequence stars are lacking in the UV-bright/Hα-faint regions. The observations are consistent with stellar ages lsim 10 Myr in the H II regions, and gsim 16 Myr in the UV-bright/Hα-faint regions. All regions but the control have formed ~ 104 M sun of stars over the past ~ 65 Myr. Thus, our results, for at least one small area in the outer disk of M81, are consistent with an age difference being sufficient to explain the observed discrepancy between star forming regions detected in Hα and those detected exclusively in UV. However, our data cannot conclusively rule out other explanations, such as a strongly truncated initial mass function.

  16. Cataclysmic Variables From the Sloan Digital Sky Survey. VI. the Sixth Year (2005)

    SciTech Connect

    Szkody, Paula; Henden, Arne; Mannikko, Lee; Mukadam, Anjum; Schmidt, Gary D.; Bochanski, John J.; Agueros, Marcel; Anderson, Scott F.; Silvestri, Nicole M.; Dahab, William E.; Oguri, Masamune; Schneider, Donald P.; Shin, Min-Su; Strauss, Michael A.; Knapp, Gillian R.; West, Andrew A.; /Washington U., Seattle, Astron. Dept.

    2007-06-15

    The 28 cataclysmic variables found in 2005 in the Sloan Digital Sky Survey are presented with their coordinates, magnitudes and spectra. Five of these systems are previously known CVs (HH Cnc, SX LMi, QZ Ser, RXJ1554.2+2721 and HS1016+3412) and the rest are new discoveries. Additional spectroscopic, photometric and/or polarimetric observations of 10 systems were carried out, resulting in estimates of the orbital periods for seven of the new binaries. The 23 new CVs include one eclipsing system, one new Polar and five systems whose spectra clearly reveal atmospheric absorption lines from the underlying white dwarf.

  17. The ESO slice project (ESP) galaxy redshift survey VI. Groups of galaxies

    NASA Astrophysics Data System (ADS)

    Ramella, M.; Zamorani, G.; Zucca, E.; Stirpe, G. M.; Vettolani, G.; Balkowski, C.; Blanchard, A.; Cappi, A.; Cayatte, V.; Chincarini, G.; Collins, C.; Guzzo, L.; MacGillivray, H.; Maccagni, D.; Maurogordato, S.; Merighi, R.; Mignoli, M.; Pisani, A.; Proust, D.; Scaramella, R.

    1999-02-01

    In this paper we identify objectively and analyze groups of galaxies in the recently completed ESP survey (23(h) 23(m) <= alpha_ {1950} <= 01(h) 20(m) and 22(h) 30(m) <= alpha_ {1950} <= 22(h) 52(m) ; -40(o) 45' <= delta_ {1950} <= -39(o) 45'). We find 231 groups above the number overdensity threshold delta rho /rho =80 in the redshift range 5000 km s(-1) <= cz <= 60000 km s(-1). These groups contain 1250 members, 40.5% of the 3085 ESP galaxies within the same cz range. The median velocity dispersion (corrected for measurement errors and computed at the redshift of the group) is sigma_ {ESP,median} = 194 km s(-1). We show that our result is reliable in spite of the particular geometry of the ESP survey (two rows of tangent circular fields of radius theta = 15 arcmin), which causes most systems to be only partially surveyed. In general, we find that the properties of ESP groups are consistent with those of groups in shallower (and wider) catalogs (e.g. CfA2N and SSRS2). As in shallower catalogs, ESP groups trace very well the geometry of the large scale structure. Our results are of particular interest because the depth of the ESP survey allows us to sample group properties over a large number of structures. We also compare luminosity function and spectral properties of galaxies that are members of groups with those of isolated galaxies. We find that galaxies in groups have a brighter M(*) with respect to non-member galaxies; the slope alpha is the same, within the errors, in the two cases. We find that 34% (467/1360) of ESP galaxies with detectable emission lines are members of groups. The fraction of galaxies without detectable emission lines in groups is significantly higher: 45% (783/1725). More generally, we find a gradual decrease of the fraction of emission line galaxies among members of systems of increasing richness. This result confirms that the morphology-density relation found for clusters also extends toward systems of lower density. Based on

  18. 31 CFR 5.9 - When will Treasury entities transfer a Treasury debt to the Treasury Department's Financial...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... a Treasury debt to the Treasury Department's Financial Management Service for collection? 5.9... Treasury Department's Financial Management Service for collection? (a) Treasury entities will transfer any eligible debt that is more than 180 days delinquent to the Financial Management Service for debt collection...

  19. BAT AGN Spectroscopic Survey (BASS) - VI. The ΓX-L/LEdd relation

    NASA Astrophysics Data System (ADS)

    Trakhtenbrot, Benny; Ricci, Claudio; Koss, Michael J.; Schawinski, Kevin; Mushotzky, Richard; Ueda, Yoshihiro; Veilleux, Sylvain; Lamperti, Isabella; Oh, Kyuseok; Treister, Ezequiel; Stern, Daniel; Harrison, Fiona; Baloković, Mislav; Gehrels, Neil

    2017-09-01

    We study the relation between accretion rate (in terms of L/LEdd) and shape of the hard X-ray spectral energy distribution (namely the photon index Γx) for a large sample of 228 hard X-ray-selected, low-redshift active galactic nuclei (AGNs), drawn from the Swift/BAT AGN Spectroscopic Survey (BASS). This includes 30 AGNs for which black hole mass (and therefore L/LEdd) is measured directly through masers, spatially resolved gas or stellar dynamics, or reverberation mapping. The high-quality and broad energy coverage of the data provided through BASS allow us to examine several alternative determinations of both Γx and L/LEdd. For the BASS sample as a whole, we find a statistically significant, albeit very weak correlation between Γx and L/LEdd. The best-fitting relations we find, Γx ≃ 0.15 log L/LEdd + const., are considerably shallower than those reported in previous studies. Moreover, we find no corresponding correlations among the subsets of AGN with different MBH determination methodology. In particular, we find no robust evidence for a correlation when considering only those AGN with direct or single-epoch MBH estimates. This latter finding is in contrast to several previous studies which focused on z > 0.5 broad-line AGN. We discuss this tension and conclude that it can be partially accounted for if one adopts a simplified, power-law X-ray spectral model, combined with L/LEdd estimates that are based on the continuum emission and on single-epoch broad-line spectroscopy in the optical regime. We finally highlight the limitations on using Γx as a probe of supermassive black hole evolution in deep extragalactic X-ray surveys.

  20. 31 CFR 100.7 - Treasury's liability.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Treasury's liability. 100.7 Section 100.7 Money and Finance: Treasury Regulations Relating to Money and Finance EXCHANGE OF PAPER CURRENCY AND COIN Exchange of Mutilated Paper Currency § 100.7 Treasury's liability. (a) Payment will be...

  1. The Herschel Virgo Cluster Survey . VI. The far-infrared view of M 87

    NASA Astrophysics Data System (ADS)

    Baes, M.; Clemens, M.; Xilouris, E. M.; Fritz, J.; Cotton, W. D.; Davies, J. I.; Bendo, G. J.; Bianchi, S.; Cortese, L.; De Looze, I.; Pohlen, M.; Verstappen, J.; Böhringer, H.; Bomans, D. J.; Boselli, A.; Corbelli, E.; Dariush, A.; di Serego Alighieri, S.; Fadda, D.; Garcia-Appadoo, D. A.; Gavazzi, G.; Giovanardi, C.; Grossi, M.; Hughes, T. M.; Hunt, L. K.; Jones, A. P.; Madden, S.; Pierini, D.; Sabatini, S.; Smith, M. W. L.; Vlahakis, C.; Zibetti, S.

    2010-07-01

    The origin of the far-infrared emission from the nearby radio galaxy M 87 remains a matter of debate. Some studies find evidence of a far-infrared excess due to thermal dust emission, whereas others propose that the far-infrared emission can be explained by synchrotron emission without the need for an additional dust emission component. We present Herschel PACS and SPIRE observations of M 87, taken as part of the science demonstration phase observations of the Herschel Virgo Cluster Survey. We compare these data with a synchrotron model based on mid-infrared, far-infrared, submm and radio data from the literature to investigate the origin of the far-infrared emission. Both the integrated SED and the Herschel surface brightness maps are adequately explained by synchrotron emission. At odds with previous claims, we find no evidence of a diffuse dust component in M 87, which is not unexpected in the harsh X-ray environment of this radio galaxy sitting at the core of the Virgo cluster. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.

  2. Department of the Treasury Semiannual Regulatory Agenda

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-20

    ...-5132 Email: elizabeth.baltierra@fincen.gov Koko (Nettie) Ives, Department of the Treasury, Financial... Email: koko.ives@fincen.gov RIN: 1506-AB07 BILLING CODE 4810--33--S ] Department of the Treasury...

  3. 12 CFR 313.160 - Treasury notification.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Treasury notification. 313.160 Section 313.160... CORPORATE DEBT COLLECTION Mandatory Centralized Administrative Offset § 313.160 Treasury notification. (a... Treasury of all debts that are delinquent (over 180 days past due), as defined in the FCCS, to enable...

  4. Groundwater Contaminated with Hexavalent Chromium [Cr (VI)]: A Health Survey and Clinical Examination of Community Inhabitants (Kanpur, India)

    PubMed Central

    Sharma, Priti; Bihari, Vipin; Agarwal, Sudhir K.; Verma, Vipin; Kesavachandran, Chandrasekharan N.; Pangtey, Balram S.; Mathur, Neeraj; Singh, Kunwar Pal; Srivastava, Mithlesh; Goel, Sudhir K.

    2012-01-01

    Background We assessed the health effects of hexavalent chromium groundwater contamination (from tanneries and chrome sulfate manufacturing) in Kanpur, India. Methods The health status of residents living in areas with high Cr (VI) groundwater contamination (N = 186) were compared to residents with similar social and demographic features living in communities having no elevated Cr (VI) levels (N = 230). Subjects were recruited at health camps in both the areas. Health status was evaluated with health questionnaires, spirometry and blood hematology measures. Cr (VI) was measured in groundwater samples by diphenylcarbazide reagent method. Results Residents from communities with known Cr (VI) contamination had more self-reports of digestive and dermatological disorders and hematological abnormalities. GI distress was reported in 39.2% vs. 17.2% males (AOR = 3.1) and 39.3% vs. 21% females (AOR = 2.44); skin abnormalities in 24.5% vs. 9.2% males (AOR = 3.48) and 25% vs. 4.9% females (AOR = 6.57). Residents from affected communities had greater RBCs (among 30.7% males and 46.1% females), lower MCVs (among 62.8% males) and less platelets (among 68% males and 72% females) than matched controls. There were no differences in leucocytes count and spirometry parameters. Conclusions Living in communities with Cr (VI) groundwater is associated with gastrointestinal and dermatological complaints and abnormal hematological function. Limitations of this study include small sample size and the lack of long term follow-up. PMID:23112863

  5. 31 CFR 5.8 - When will Treasury entities suspend or terminate debt collection on a Treasury debt?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false When will Treasury entities suspend or terminate debt collection on a Treasury debt? 5.8 Section 5.8 Money and Finance: Treasury Office of the Secretary of the Treasury TREASURY DEBT COLLECTION Procedures To Collect Treasury Debts §...

  6. 31 CFR 5.16 - When will Treasury entities refer Treasury debts to the Department of Justice?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false When will Treasury entities refer Treasury debts to the Department of Justice? 5.16 Section 5.16 Money and Finance: Treasury Office of the Secretary of the Treasury TREASURY DEBT COLLECTION Procedures To Collect Treasury Debts § 5.16 When...

  7. 31 CFR 5.11 - How will Treasury entities use tax refund offset to collect a Treasury debt?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false How will Treasury entities use tax refund offset to collect a Treasury debt? 5.11 Section 5.11 Money and Finance: Treasury Office of the Secretary of the Treasury TREASURY DEBT COLLECTION Procedures To Collect Treasury Debts § 5.11 How...

  8. 47 CFR 32.4530 - Treasury stock.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Treasury stock. 32.4530 Section 32.4530... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.4530 Treasury stock. This account shall include the cost of the company's own capital stock which has been issued...

  9. 47 CFR 32.4530 - Treasury stock.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 2 2011-10-01 2011-10-01 false Treasury stock. 32.4530 Section 32.4530... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.4530 Treasury stock. This account shall include the cost of the company's own capital stock which has been issued...

  10. 47 CFR 32.4530 - Treasury stock.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 2 2013-10-01 2013-10-01 false Treasury stock. 32.4530 Section 32.4530... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.4530 Treasury stock. This account shall include the cost of the company's own capital stock which has been issued...

  11. 47 CFR 32.4530 - Treasury stock.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 2 2014-10-01 2014-10-01 false Treasury stock. 32.4530 Section 32.4530... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.4530 Treasury stock. This account shall include the cost of the company's own capital stock which has been issued...

  12. 47 CFR 32.4530 - Treasury stock.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 2 2012-10-01 2012-10-01 false Treasury stock. 32.4530 Section 32.4530... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.4530 Treasury stock. This account shall include the cost of the company's own capital stock which has been issued...

  13. 31 CFR 5.12 - How will Treasury entities offset a Federal employee's salary to collect a Treasury debt?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Federal employee's salary to collect a Treasury debt? 5.12 Section 5.12 Money and Finance: Treasury Office... How will Treasury entities offset a Federal employee's salary to collect a Treasury debt? (a) Federal... Department and other Federal employees. If a Federal employee owes a Treasury debt, Treasury entities may...

  14. 31 CFR 5.12 - How will Treasury entities offset a Federal employee's salary to collect a Treasury debt?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Federal employee's salary to collect a Treasury debt? 5.12 Section 5.12 Money and Finance: Treasury Office... How will Treasury entities offset a Federal employee's salary to collect a Treasury debt? (a) Federal... Department and other Federal employees. If a Federal employee owes a Treasury debt, Treasury entities may...

  15. 31 CFR 5.12 - How will Treasury entities offset a Federal employee's salary to collect a Treasury debt?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Federal employee's salary to collect a Treasury debt? 5.12 Section 5.12 Money and Finance: Treasury Office... How will Treasury entities offset a Federal employee's salary to collect a Treasury debt? (a) Federal... Department and other Federal employees. If a Federal employee owes a Treasury debt, Treasury entities may...

  16. 31 CFR 5.12 - How will Treasury entities offset a Federal employee's salary to collect a Treasury debt?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Federal employee's salary to collect a Treasury debt? 5.12 Section 5.12 Money and Finance: Treasury Office... How will Treasury entities offset a Federal employee's salary to collect a Treasury debt? (a) Federal... Department and other Federal employees. If a Federal employee owes a Treasury debt, Treasury entities may...

  17. University Commission on Human Relations: Focusing on Racism & Other Forms of Discrimination. Final Report. Volume VI: Faculty Survey and Frequencies.

    ERIC Educational Resources Information Center

    James, Olive C. R., Ed.; Matson, Hollis N., Ed.

    A survey of 124 San Francisco State University (SFSU) faculty was conducted in Fall 1989 to assess their attitudes, observations, and experiences concerning human relations at SFSU. This report provides frequency distributions for each of the 37 items on the survey questionnaire. The questionnaire focused on: treatment of various racial/ethnic…

  18. A SURVEY OF METAL LINES AT HIGH REDSHIFT. II. SDSS ABSORPTION LINE STUDIES-O VI LINE DENSITY, SPACE DENSITY, AND GAS METALLICITY AT z{sub abs} {approx} 3.0

    SciTech Connect

    Frank, S.; Mathur, S.; Pieri, M.; York, D. G.

    2010-09-15

    We have analyzed a large data set of O VI absorber candidates found in the spectra of 3702 Sloan Digital Sky Survey (SDSS) quasars, focusing on a subsample of 387 active galactic nuclei sight lines with an average S/N {>=}5.0, allowing for the detection of absorbers above a rest-frame equivalent width limit of W{sub r} {>=} 0.19 A for the O VI 1032 A component. Accounting for random interlopers mimicking an O VI doublet, we derive for the first time a secure lower limit for the redshift number density {Delta}N/{Delta}z for redshifts z{sub abs} {>=} 2.8. With extensive Monte Carlo simulations, we quantify the losses of absorbers due to blending with the ubiquitous Ly{alpha} forest lines and estimate the success rate of retrieving each individual candidate as a function of its redshift, the emission redshift of the quasar, the strength of the absorber, and the measured signal-to-noise ratio (S/N) of the spectrum by modeling typical Lyman forest spectra. These correction factors allow us to derive the 'incompleteness and S/N-corrected' redshift number densities of O VI absorbers: {Delta}N{sub O{sub VI,c}}/{Delta}z{sub c} (2.8 < z < 3.2) = 4.6 {+-} 0.3, {Delta}N{sub O{sub VI,c}}/{Delta}z{sub c} (3.2 < z < 3.6) = 6.7 {+-} 0.8, and {Delta}N{sub O{sub VI,c}}/{Delta}z{sub c} (3.6 < z < 4.0) = 8.4 {+-} 2.9. We can place a secure lower limit for the contribution of O VI to the closure mass density at the redshifts probed here: {Omega}{sub O{sub VI}}(2.8 < z < 3.2) {>=} 1.9 x 10{sup -8} h {sup -1}. We show that the strong lines we probe account for over 65% of the mass in the O VI absorbers; the weak absorbers, while dominant in line number density, do not contribute significantly to the mass density. Making a conservative assumption about the ionization fraction, O{sub VI}/O, and adopting the Anders and Grevesse solar abundance values, we derive the mean metallicity of the gas probed in our search: {zeta}(2.8 < z < 3.2) {>=} 3.6 x 10{sup -4} h, in good agreement with other

  19. 31 CFR 31.216 - Communications with Treasury employees.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Communications with Treasury employees. 31.216 Section 31.216 Money and Finance: Treasury Office of the Secretary of the Treasury TROUBLED ASSET RELIEF PROGRAM Conflicts of Interest § 31.216 Communications with Treasury employees....

  20. 31 CFR 363.204 - What registrations are available for my marketable Treasury securities held in TreasuryDirect ®?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... my marketable Treasury securities held in TreasuryDirect ®? 363.204 Section 363.204 Money and... TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Marketable Treasury Securities § 363.204 What registrations are available for my marketable Treasury securities...

  1. Survey of Land-Grant Colleges and Universities. Bulletin, 1930, No. 9. Volume I. [Preface - Part VI

    ERIC Educational Resources Information Center

    Office of Education, United States Department of the Interior, 1930

    1930-01-01

    At the request of the Association of Land-Grant Colleges and Universities, the Office of Education undertook a survey of the 69 land-grant colleges and universities, including 17 institutions for Negroes. For more than a half century, these institutions have grown in importance as vital factors in the agricultural, industrial, and educational…

  2. THE ACS FORNAX CLUSTER SURVEY. VI. THE NUCLEI OF EARLY-TYPE GALAXIES IN THE FORNAX CLUSTER

    SciTech Connect

    Turner, Monica L.; Cote, Patrick; Ferrarese, Laura; Blakeslee, John P.; Jordan, Andres; Mei, Simona; Peng, Eric W.; West, Michael J.

    2012-11-15

    The Advanced Camera for Surveys (ACS) Fornax Cluster Survey is a Hubble Space Telescope program to image 43 early-type galaxies in the Fornax cluster, using the F475W and F850LP bandpasses of the ACS. We employ both one-dimensional and two-dimensional techniques to characterize the properties of the stellar nuclei in these galaxies, defined as the central 'luminosity excesses', relative to a Sersic model fitted to the underlying host. We find 72% {+-} 13% of our sample (31 galaxies) to be nucleated, with only three of the nuclei offset by more than 0.''5 from their galaxy photocenter, and with the majority of nuclei having colors bluer than their hosts. The nuclei are observed to be larger, and brighter, than typical Fornax globular clusters and to follow different structural scaling relations. A comparison of our results to those from the ACS Virgo Cluster Survey reveals striking similarities in the properties of the nuclei belonging to these different environments. We briefly review a variety of proposed formation models and conclude that, for the low-mass galaxies in our sample, the most important mechanism for nucleus growth is probably infall of star clusters through dynamical friction, while for higher mass galaxies, gas accretion triggered by mergers, accretions, and tidal torques is likely to dominate, with the relative importance of these two processes varying smoothly as a function of galaxy mass. Some intermediate-mass galaxies in our sample show a complexity in their inner structure that may be the signature of the 'hybrid nuclei' that arose through parallel formation channels.

  3. Mucopolysaccharidosis VI

    PubMed Central

    2010-01-01

    Mucopolysaccharidosis VI (MPS VI) is a lysosomal storage disease with progressive multisystem involvement, associated with a deficiency of arylsulfatase B leading to the accumulation of dermatan sulfate. Birth prevalence is between 1 in 43,261 and 1 in 1,505,160 live births. The disorder shows a wide spectrum of symptoms from slowly to rapidly progressing forms. The characteristic skeletal dysplasia includes short stature, dysostosis multiplex and degenerative joint disease. Rapidly progressing forms may have onset from birth, elevated urinary glycosaminoglycans (generally >100 μg/mg creatinine), severe dysostosis multiplex, short stature, and death before the 2nd or 3rd decades. A more slowly progressing form has been described as having later onset, mildly elevated glycosaminoglycans (generally <100 μg/mg creatinine), mild dysostosis multiplex, with death in the 4th or 5th decades. Other clinical findings may include cardiac valve disease, reduced pulmonary function, hepatosplenomegaly, sinusitis, otitis media, hearing loss, sleep apnea, corneal clouding, carpal tunnel disease, and inguinal or umbilical hernia. Although intellectual deficit is generally absent in MPS VI, central nervous system findings may include cervical cord compression caused by cervical spinal instability, meningeal thickening and/or bony stenosis, communicating hydrocephalus, optic nerve atrophy and blindness. The disorder is transmitted in an autosomal recessive manner and is caused by mutations in the ARSB gene, located in chromosome 5 (5q13-5q14). Over 130 ARSB mutations have been reported, causing absent or reduced arylsulfatase B (N-acetylgalactosamine 4-sulfatase) activity and interrupted dermatan sulfate and chondroitin sulfate degradation. Diagnosis generally requires evidence of clinical phenotype, arylsulfatase B enzyme activity <10% of the lower limit of normal in cultured fibroblasts or isolated leukocytes, and demonstration of a normal activity of a different sulfatase enzyme

  4. Mucopolysaccharidosis VI.

    PubMed

    Valayannopoulos, Vassili; Nicely, Helen; Harmatz, Paul; Turbeville, Sean

    2010-04-12

    Mucopolysaccharidosis VI (MPS VI) is a lysosomal storage disease with progressive multisystem involvement, associated with a deficiency of arylsulfatase B leading to the accumulation of dermatan sulfate. Birth prevalence is between 1 in 43,261 and 1 in 1,505,160 live births. The disorder shows a wide spectrum of symptoms from slowly to rapidly progressing forms. The characteristic skeletal dysplasia includes short stature, dysostosis multiplex and degenerative joint disease. Rapidly progressing forms may have onset from birth, elevated urinary glycosaminoglycans (generally >100 microg/mg creatinine), severe dysostosis multiplex, short stature, and death before the 2nd or 3rd decades. A more slowly progressing form has been described as having later onset, mildly elevated glycosaminoglycans (generally <100 microg/mg creatinine), mild dysostosis multiplex, with death in the 4th or 5th decades. Other clinical findings may include cardiac valve disease, reduced pulmonary function, hepatosplenomegaly, sinusitis, otitis media, hearing loss, sleep apnea, corneal clouding, carpal tunnel disease, and inguinal or umbilical hernia. Although intellectual deficit is generally absent in MPS VI, central nervous system findings may include cervical cord compression caused by cervical spinal instability, meningeal thickening and/or bony stenosis, communicating hydrocephalus, optic nerve atrophy and blindness. The disorder is transmitted in an autosomal recessive manner and is caused by mutations in the ARSB gene, located in chromosome 5 (5q13-5q14). Over 130 ARSB mutations have been reported, causing absent or reduced arylsulfatase B (N-acetylgalactosamine 4-sulfatase) activity and interrupted dermatan sulfate and chondroitin sulfate degradation. Diagnosis generally requires evidence of clinical phenotype, arylsulfatase B enzyme activity <10% of the lower limit of normal in cultured fibroblasts or isolated leukocytes, and demonstration of a normal activity of a different sulfatase

  5. Survey of the reptilian fauna of the Kingdom of Saudi Arabia. VI. The snake fauna of Turaif region.

    PubMed

    Al-Sadoon, Mohammed K; Paray, Bilal Ahmad; Al-Otaibi, Hamad

    2017-05-01

    A collection of snakes in Turaif region, Kingdom of Saudi Arabia, an area that has been poorly documented for reptiles, consists of 28 specimens representing 11 species belonging to 4 families (Colubridae, Elapidae, Viperidae and Atractaspididae). This study presents the first comprehensive inventory of the herpetofauna of the Turaif province of Saudi Arabia. Co-ordinates: Latitude, longitude and altitude, of the collected specimens were mapped using GPS. Three of the snake species Lytorhynchus diadema, Pseudocerastes fieldi and Walterinnesia morgani reported by the authors in the present survey proved to be new records for Turaif region of Saudi Arabia.

  6. VizieR Online Data Catalog: The ELM survey. VI. 11 new ELM WD binaries (Gianninas+, 2015)

    NASA Astrophysics Data System (ADS)

    Gianninas, A.; Kilic, M.; Brown, W. R.; Canton, P.; Kenyon, S. J.

    2016-02-01

    We used the 6.5m MMT telescope equipped with the Blue Channel spectrograph, the 200 inch Hale telescope equipped with the Double spectrograph, the Kitt Peak National Observatory 4m telescope equipped with the R-C spectrograph, and more recently with Kitt Peak Ohio State Multi-Object Spectrograph (KOSMOS), to obtain spectroscopy of our 11 targets in several observing runs. We have also been obtaining radial-velocity measurements for candidates from other sources including the Large Sky Area Multi-Object Spectroscopy Telescope (LAMOST). Those 11 new Extremely low-mass white dwarf (ELM WD) binaries bring the total of ELM WDs identified by the ELM Survey up to 73. (4 data files).

  7. Galaxy pairs in the Sloan Digital Sky Survey - VI. The orbital extent of enhanced star formation in interacting galaxies

    NASA Astrophysics Data System (ADS)

    Patton, David R.; Torrey, Paul; Ellison, Sara L.; Mendel, J. Trevor; Scudder, Jillian M.

    2013-06-01

    We use pair and environmental classifications of ˜211 000 star-forming galaxies from the Sloan Digital Sky Survey, along with a suite of merger simulations, to investigate the enhancement of star formation as a function of separation in galaxy pairs. Using a new technique for distinguishing between the influence of nearby neighbours and larger scale environment, we find a clear enhancement in star formation out to projected separations of ˜150 kpc, beyond which there is no net enhancement. We find the strongest enhancements at the smallest separations (especially <20 kpc), consistent with earlier work. Similar trends are seen in the simulations, which indicate that the strongest enhancements are produced in highly disturbed systems approaching final coalescence, whereas the more modest enhancements seen at wider separations are the result of starburst activity triggered at first pericentre passage, which persists as the galaxies move to larger separations. The absence of any net enhancement beyond 150 kpc provides reassurance that the detected enhancements are due to galaxy-galaxy interactions, rather than larger scale environmental effects or potential pair selection biases. A rough census indicates that 66 per cent of the enhanced star formation in our pair sample occurs at separations >30 kpc. We conclude that significant interaction-induced star formation is not restricted to merger remnants or galaxies with close companions; instead, a larger population of wider separation pairs exhibit enhanced star formation due to recent close encounters.

  8. The Sloan Digital Sky Survey Quasar Lens Search. VI. Constraints on Dark Energy and the Evolution of Massive Galaxies

    SciTech Connect

    Oguri, Masamune; et al.

    2012-05-01

    We present a statistical analysis of the final lens sample from the Sloan Digital Sky Survey Quasar Lens Search (SQLS). The number distribution of a complete subsample of 19 lensed quasars selected from 50,836 source quasars is compared with theoretical expectations, with particular attention to the selection function. Assuming that the velocity function of galaxies does not evolve with redshift, the SQLS sample constrains the cosmological constant to \\Omega_\\Lambda=0.79^{+0.06}_{-0.07}(stat.)^{+0.06}_{-0.06}(syst.) for a flat universe. The dark energy equation of state is found to be consistent with w=-1 when the SQLS is combined with constraints from baryon acoustic oscillation (BAO) measurements or results from the Wilkinson Microwave Anisotropy Probe (WMAP). We also obtain simultaneous constraints on cosmological parameters and redshift evolution of the galaxy velocity function, finding no evidence for redshift evolution at z<1 in any combinations of constraints. For instance, number density evolution quantified as \

  9. The Treasury Grants, 1833-1839

    ERIC Educational Resources Information Center

    Alexander, J.; Paz, D. G.

    1974-01-01

    Recent studies on the education program unveiled by Lord John Russell in 1839 suggest that evaluation of that program is too simple, and a systematic consideration of the education grant, which was a part of that program, in the period of its administration by the Treasury confirms the need for some revision. (Author/RK)

  10. 31 CFR 281.6 - Withdrawals from Treasury accounts.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Withdrawals from Treasury accounts. 281.6 Section 281.6 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE FOREIGN EXCHANGE OPERATIONS §...

  11. 12 CFR 390.314 - United States Treasury General Account.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 12 Banks and Banking 5 2012-01-01 2012-01-01 false United States Treasury General Account. 390.314... Affecting All State Savings Associations § 390.314 United States Treasury General Account. The term United States Treasury General Account means an account maintained in the name of the United States Treasury...

  12. 31 CFR 281.6 - Withdrawals from Treasury accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Withdrawals from Treasury accounts. 281.6 Section 281.6 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE FOREIGN EXCHANGE OPERATIONS § 281...

  13. 31 CFR 240.11 - Treasury Check Offset.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Treasury Check Offset. 240.11 Section 240.11 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE INDORSEMENT AND PAYMENT OF CHECKS...

  14. 31 CFR 337.1 - Applicability of Treasury regulations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Applicability of Treasury regulations. 337.1 Section 337.1 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT SUPPLEMENTAL REGULATIONS...

  15. 31 CFR 309.2 - Description of Treasury bills (General).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Description of Treasury bills (General). 309.2 Section 309.2 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT ISSUE AND SALE OF...

  16. 31 CFR 281.6 - Withdrawals from Treasury accounts.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Withdrawals from Treasury accounts. 281.6 Section 281.6 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE FOREIGN EXCHANGE OPERATIONS §...

  17. THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH. VI. CONSTRAINTS ON DARK ENERGY AND THE EVOLUTION OF MASSIVE GALAXIES

    SciTech Connect

    Oguri, Masamune; Kayo, Issha; Fukugita, Masataka; Inada, Naohisa; Strauss, Michael A.; Shin, Min-Su; Bahcall, Neta A.; Kochanek, Christopher S.; Morokuma, Tomoki; Richards, Gordon T.; Rusu, Cristian E.; Frieman, Joshua A.; Schneider, Donald P.; York, Donald G.; White, Richard L.

    2012-05-15

    We present a statistical analysis of the final lens sample from the Sloan Digital Sky Survey Quasar Lens Search (SQLS). The number distribution of a complete subsample of 19 lensed quasars selected from 50,836 source quasars is compared with theoretical expectations, with particular attention given to the selection function. Assuming that the velocity function of galaxies does not evolve with redshift, the SQLS sample constrains the cosmological constant to {Omega}{sub {Lambda}} = 0.79{sup +0.06}{sub -0.07}(stat.){sup +0.06}{sub -0.06}(syst.) for a flat universe. The dark energy equation of state is found to be consistent with w = -1 when the SQLS is combined with constraints from baryon acoustic oscillation (BAO) measurements or results from the Wilkinson Microwave Anisotropy Probe (WMAP). We also obtain simultaneous constraints on cosmological parameters and redshift evolution of the galaxy velocity function, finding no evidence for redshift evolution at z {approx}< 1 in any combinations of constraints. For instance, number density evolution quantified as {nu}{sub n} {identical_to} dln {phi}{sub *}/dln (1 + z) and the velocity dispersion evolution {nu}{sub {sigma}} {identical_to} dln {sigma}{sub *}/dln (1 + z) are constrained to {nu}{sub n} = 1.06{sup +1.36}{sub -1.39}(stat.){sup +0.33}{sub -0.64}(syst.) and {nu}{sub {sigma}} = -0.05{sup +0.19}{sub -0.16}(stat.){sup +0.03}{sub -0.03}(syst.), respectively, when the SQLS result is combined with BAO and WMAP for flat models with a cosmological constant. We find that a significant amount of dark energy is preferred even after fully marginalizing over the galaxy evolution parameters. Thus, the statistics of lensed quasars robustly confirm the accelerated cosmic expansion.

  18. 31 CFR 5.5 - How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury debt? 5.5 Section 5.5 Money and Finance... Debts § 5.5 How will Treasury entities add interest, penalty charges, and administrative costs to...

  19. 31 CFR 5.5 - How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance: Treasury 1 2011-07-01 2011-07-01 false How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury debt? 5.5 Section 5.5 Money and Finance... Debts § 5.5 How will Treasury entities add interest, penalty charges, and administrative costs to...

  20. 31 CFR 5.5 - How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 1 2014-07-01 2014-07-01 false How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury debt? 5.5 Section 5.5 Money and Finance... Debts § 5.5 How will Treasury entities add interest, penalty charges, and administrative costs to...

  1. 31 CFR 5.5 - How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance: Treasury 1 2013-07-01 2013-07-01 false How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury debt? 5.5 Section 5.5 Money and Finance... Debts § 5.5 How will Treasury entities add interest, penalty charges, and administrative costs to...

  2. 31 CFR 5.5 - How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance: Treasury 1 2012-07-01 2012-07-01 false How will Treasury entities add interest, penalty charges, and administrative costs to a Treasury debt? 5.5 Section 5.5 Money and Finance... Debts § 5.5 How will Treasury entities add interest, penalty charges, and administrative costs to...

  3. The DiskMass Survey. VI. Gas and stellar kinematics in spiral galaxies from PPak integral-field spectroscopy

    NASA Astrophysics Data System (ADS)

    Martinsson, Thomas P. K.; Verheijen, Marc A. W.; Westfall, Kyle B.; Bershady, Matthew A.; Schechtman-Rook, Andrew; Andersen, David R.; Swaters, Rob A.

    2013-09-01

    We present ionized-gas ([Oiii]λ5007 Å) and stellar kinematics (velocities and velocity dispersions) for 30 nearly face-on spiral galaxies out to as many as three K-band disk scale lengths (hR). These data have been derived from PPak integral-field-unit spectroscopy from 4980-5370 Å observed at a mean resolution of λ/Δλ = 7700 (σinst = 17 km s-1). These data are a fundamental product of our survey and will be used in companion papers to, e.g., derive the detailed (baryonic+dark) mass budget of each galaxy in our sample. Our presentation provides a comprehensive description of the observing strategy and data reduction, including a robust measurement and removal of shift, scale, and rotation effects in the data due to instrumental flexure. Using an in-plane coordinate system determined by fitting circular-speed curves to our velocity fields, we derive azimuthally averaged rotation curves and line-of-sight velocity dispersion (σLOS) and luminosity profiles for both the stars and [Oiii]-emitting gas. Along with a clear presentation of the data, we demonstrate: (1) The [Oiii] and stellar rotation curves exhibit a clear signature of asymmetric drift with a rotation difference that is 11% of the maximum rotation speed of the galaxy disk, comparable to measurements in the solar neighborhood in the Milky Way. (2) The e-folding length of the stellar velocity dispersion (hσ) is 2hR on average, as expected for a disk with a constant scale height and mass-to-light ratio, with a scatter that is notably smaller for massive, high-surface-brightness disks in the most luminous galaxies. (3) At radii larger than 1.5hR, σLOS tends to decline slower than the best-fitting exponential function, which may be due to an increase in the disk mass-to-light ratio, disk flaring, or disk heating by the dark-matter halo. (4) A strong correlation exists between the central vertical stellar velocity dispersion of the disks (σz,0) and their circular rotational speed at 2.2hR (V2.2h

  4. MOIRCS DEEP SURVEY. VI. NEAR-INFRARED SPECTROSCOPY OF K-SELECTED STAR-FORMING GALAXIES AT z {approx} 2

    SciTech Connect

    Yoshikawa, Tomohiro; Akiyama, Masayuki; Kajisawa, Masaru; Tokoku, Chihiro; Yamada, Toru; Ichikawa, Takashi; Alexander, David M.; Ohta, Kouji; Suzuki, Ryuji; Tanaka, Ichi; Omata, Koji; Nishimura, Tetsuo; Uchimoto, Yuka K.; Konishi, Masahiro; Koekemoer, Anton M.; Brandt, Niel

    2010-07-20

    We present the results of near-infrared multi-object spectroscopic observations for 37 BzK-color-selected star-forming galaxies conducted with MOIRCS on the Subaru Telescope. The sample is drawn from the K{sub s} -band-selected catalog of the MOIRCS Deep Survey in the GOODS-N region. About half of our samples are selected from the publicly available 24 {mu}m-source catalog of the Multiband Imaging Photometer for Spitzer on board the Spitzer Space Telescope. H{alpha} emission lines are detected from 23 galaxies, of which the median redshift is 2.12. We derived the star formation rates (SFRs) from extinction-corrected H{alpha} luminosities. The extinction correction is estimated from the spectral energy distribution (SED) fitting of multiband photometric data covering UV to near-infrared wavelengths. The Balmer decrement of the stacked emission lines shows that the amount of extinction for the ionized gas is larger than that for the stellar continuum. From a comparison of the extinction-corrected H{alpha} luminosity and other SFR indicators, we found that the relation between the dust properties of stellar continuum and ionized gas is different depending on the intrinsic SFR (differential extinction). We compared SFRs estimated from extinction-corrected H{alpha} luminosities with stellar masses estimated from SED fitting. The comparison shows no correlation between SFR and stellar mass. Some galaxies with stellar mass smaller than {approx}10{sup 10} M{sub sun} show SFRs higher than {approx}100 M{sub sun} yr{sup -1}. The specific SFRs (SSFRs) of these galaxies are remarkably high; galaxies which have SSFR higher than {approx}10{sup -8} yr{sup -1} are found in eight of the present sample. From the best-fit parameters of SED fitting for these high-SSFR galaxies, we find that the average age of the stellar population is younger than 100 Myr, which is consistent with the implied high SSFR. The large SFR implies the possibility that the high-SSFR galaxies significantly

  5. The ESO Nearby Abell Cluster Survey. VI. Spatial distribution and kinematics of early- and late-type galaxies

    NASA Astrophysics Data System (ADS)

    de Theije, P. A. M.; Katgert, P.

    1999-01-01

    Analysis of the data obtained in the ESO Nearby Abell Cluster Survey (ENACS) has shown that the space distribution and kinematics of galaxies with detectable emission lines in their spectra differ significantly from those of galaxies without emission lines. This result, and details of the kinematics, were considered as support for the idea that at least the spirals with emission lines are on orbits that are not isotropic. This might indicate that this subset of late-type galaxies either has `first approach'-orbits towards the dense core of their respective clusters, or has orbits that `avoid' the core. The galaxies with emission lines are essentially all late-type galaxies. On the other hand, the emission-line galaxies represent only about a third of the late-type galaxies, the majority of which do not show detectable emission lines. The galaxies without emission lines are therefore a mix of early- and late-type galaxies. In this paper we attempt to separate early- and late-type galaxies, and we study possible differences in distribution and kinematics of the two galaxy classes. For only about 10% of the galaxies in the ENACS, the morphology is known from imaging. Here, we describe our classification on the basis of the ENACS spectrum. The significant information in each spectrum is compressed into 15 Principal Components, which are used as input for an Artificial Neural Network. The latter is `trained' with 150 of the 270 galaxies for which a morphological type is available from Dressler, and subsequently used to classify each galaxy. This yields a classification for two-thirds of the ENACS galaxies. The Artificial Neural Network has two output classes: early-type (E+S0) and late-type (S+I) galaxies. We do not distinguish E and S0 galaxies, because these cannot be separated very robustly on the basis of the spectrum. The success rate of the classification is estimated from the sample of 120 galaxies with Dressler morphologies which were not used to train the ANN

  6. Quantum field theory of treasury bonds

    NASA Astrophysics Data System (ADS)

    Baaquie, Belal E.

    2001-07-01

    The Heath-Jarrow-Morton (HJM) formulation of treasury bonds in terms of forward rates is recast as a problem in path integration. The HJM model is generalized to the case where all the forward rates are allowed to fluctuate independently. The resulting theory is shown to be a two-dimensional Gaussian quantum field theory. The no arbitrage condition is obtained and a functional integral derivation is given for the price of a futures and an options contract.

  7. Quantum field theory of treasury bonds.

    PubMed

    Baaquie, B E

    2001-07-01

    The Heath-Jarrow-Morton (HJM) formulation of treasury bonds in terms of forward rates is recast as a problem in path integration. The HJM model is generalized to the case where all the forward rates are allowed to fluctuate independently. The resulting theory is shown to be a two-dimensional Gaussian quantum field theory. The no arbitrage condition is obtained and a functional integral derivation is given for the price of a futures and an options contract.

  8. 12 CFR 161.53 - United States Treasury General Account.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 12 Banks and Banking 1 2013-01-01 2013-01-01 false United States Treasury General Account. 161.53... REGULATIONS AFFECTING ALL SAVINGS ASSOCIATIONS § 161.53 United States Treasury General Account. The term United States Treasury General Account means an account maintained in the name of the United...

  9. 12 CFR 561.53 - United States Treasury General Account.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 12 Banks and Banking 6 2012-01-01 2012-01-01 false United States Treasury General Account. 561.53... REGULATIONS AFFECTING ALL SAVINGS ASSOCIATIONS § 561.53 United States Treasury General Account. The term United States Treasury General Account means an account maintained in the name of the United...

  10. 31 CFR 337.12 - Applicability of TREASURY DIRECT regulations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... DIRECT regulations. The regulations governing the TREASURY DIRECT Book-Entry Securities System (TREASURY... following exceptions: (a) Securities account. (See § 357.20 of this chapter.) An account in the book-entry debenture system may be established by the Department of the Treasury upon receipt of the request that a...

  11. 31 CFR 337.12 - Applicability of TREASURY DIRECT regulations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... DIRECT regulations. The regulations governing the TREASURY DIRECT Book-Entry Securities System (TREASURY... following exceptions: (a) Securities account. (See § 357.20 of this chapter.) An account in the book-entry debenture system may be established by the Department of the Treasury upon receipt of the request that a...

  12. 29 CFR 1650.206 - Notification to Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 4 2010-07-01 2010-07-01 false Notification to Treasury. 1650.206 Section 1650.206 Labor... for the Collection of Debts by Federal Tax Refund Offset § 1650.206 Notification to Treasury. (a) When referring a debt to Treasury, EEOC will certify that the debt meets all of the requirements in §...

  13. 12 CFR 561.53 - United States Treasury General Account.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false United States Treasury General Account. 561.53 Section 561.53 Banks and Banking OFFICE OF THRIFT SUPERVISION, DEPARTMENT OF THE TREASURY DEFINITIONS FOR REGULATIONS AFFECTING ALL SAVINGS ASSOCIATIONS § 561.53 United States Treasury General Account. The...

  14. 31 CFR 357.20 - Securities account in Legacy Treasury Direct ®.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... BOOK-ENTRY TREASURY BONDS, NOTES AND BILLS HELD IN TREASURY/RESERVE AUTOMATED DEBT ENTRY SYSTEM (TRADES) AND LEGACY TREASURY DIRECT Legacy Treasury Direct Book-Entry Securities System (Legacy Treasury Direct... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Securities account in Legacy Treasury...

  15. VizieR Online Data Catalog: Hubble Tarantula Treasury Project (HTTP). III. (Sabbi+, 2016)

    NASA Astrophysics Data System (ADS)

    Sabbi, E.; Lennon, D. J.; Anderson, J.; Cignoni, M.; van der Marel, R. P.; Zaritsky, D.; de Marchi, G.; Panagia, N.; Gouliermis, D. A.; Grebel, E. K.; Gallagher, J. S., III; Smith, L. J.; Sana, H.; Aloisi, A.; Tosi, M.; Evans, C. J.; Arab, H.; Boyer, M.; de Mink, S. E.; Gordon, K.; Koekemoer, A. M.; Larsen, S. S.; Ryon, J. E.; Zeidler, P.

    2016-02-01

    Hubble Tarantula Treasury Project (HTTP; HST 12939, PI Elena Sabbi + HST 12499, PI Danny Lennon) was awarded 60 orbits of HST time in cycle 20 to survey the entire Tarantula Nebula (30 Doradus), using both the UVIS and the IR channels of the Wide Field Camera 3 (WFC3), and, in parallel, the Wide Field Channel (WFC) of the Advanced Camera for Surveys (ACS). See log of the observations (from 2011 Oct 03 to 2013 Sep 17) in table 1. (2 data files).

  16. The eta Carinae Treasury Project and the HST/STIS

    NASA Technical Reports Server (NTRS)

    Martin, John C.; Davidson, Kris

    2006-01-01

    The HST Eta Carinae Treasury Project made extensive use of the HST/STIS from 1998 to the time of its failure in 2004. As one of the most prolific users of that instrument, the Treasury Project used the cross-dispersed spatial resolution of the STIS as few projects did. We present several enhancements to the existing STIS data reduction methods that are applicable to non-Treasury Project data in the STIS archive.

  17. 31 CFR 363.37 - How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect ® account? 363.37 Section 363.37 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY...

  18. 31 CFR 363.37 - How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect ® account? 363.37 Section 363.37 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY...

  19. 31 CFR 363.37 - How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect ® account? 363.37 Section 363.37 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY...

  20. 31 CFR 363.207 - Can I transfer my marketable Treasury security from my TreasuryDirect ® account to another...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Can I transfer my marketable Treasury security from my TreasuryDirect ® account to another TreasuryDirect account? 363.207 Section 363.207 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE,...

  1. 31 CFR 363.4 - How is TreasuryDirect® different from the Legacy Treasury Direct® system and the commercial book...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL SERVICE REGULATIONS GOVERNING SECURITIES HELD IN... Treasury for purchasing, holding and conducting permitted transactions in eligible Treasury securities in electronic form as a computer record on the books of Treasury. TreasuryDirect currently provides for the...

  2. 31 CFR 363.4 - How is TreasuryDirect® different from the Legacy Treasury Direct® system and the commercial book...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT... Treasury for purchasing, holding and conducting permitted transactions in eligible Treasury securities in electronic form as a computer record on the books of Treasury. TreasuryDirect currently provides for the...

  3. 75 FR 26089 - Securities Held in TreasuryDirect

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-11

    ..., Fiscal Service, Treasury. ACTION: Final rule. SUMMARY: TreasuryDirect is an account-based, book- entry... when the maturing security goes into a closed book period, or when a noncompetitive bid for the.... Amend Sec. 363.6 by: 0 a. Adding the definition of ``Closed book period'' and ``Reinvestment'' in...

  4. 75 FR 70814 - Securities Held in Treasury Direct

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-19

    ... Fiscal Service 31 CFR Part 363 Securities Held in Treasury Direct AGENCY: Bureau of the Public Debt...: Elisha Whipkey, Director, Division of Program Administration, Office of Retail Securities, Bureau of the... . SUPPLEMENTARY INFORMATION: United States Savings Bonds are non- marketable Treasury securities which have been...

  5. 31 CFR 363.4 - How is TreasuryDirect ® different from the Legacy Treasury Direct system and the commercial book...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... in a tiered system through securities intermediaries such as financial institutions or brokerage... OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT... Treasury for purchasing, holding and conducting permitted transactions in eligible Treasury securities...

  6. 31 CFR 5.12 - How will Treasury entities offset a Federal employee's salary to collect a Treasury debt?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... § 5.9(a) of this part, Treasury entities will refer Treasury debts to the Financial Management Service... errors or delays in processing pay documents, if the overpayment occurred within the four pay periods preceding the adjustment, and, at the time of such adjustment, or as soon thereafter as practical,...

  7. Hubble Tarantula Treasury Project {HTTP: unraveling Tarantula's web}

    NASA Astrophysics Data System (ADS)

    Sabbi, Elena

    2012-10-01

    The Tarantula Nebula is the nearest and only starburst that can be studied down to the sub-solar mass regime {<0.5Mo}, and thus it offers us the rare opportunity to investigate the process of star formation in an environment that resembles in metallicity, dust content, and star formation rate, the extreme conditions of the early universe. Its importance to astronomy is reflected in the fact that it has been subject to large-scale multi-wavelength studies from the other Great Observatories. However less than 10% of the region has been studied with HST. With HTTP we will take advantage of the full power of HST using ACS and WFC3 in parallel to study this unique object over its entire extent { 200x200 pc} in the near-UV {F275W and F336W}, optical {F435W and F658N} and near-IR {F110W and F160W}, building on an existing HST monochromatic {F775W} proper-motion survey. By dissecting its stellar populations and inferring an accurate description of its anatomy, we will reconstruct for the first time the temporal evolution of a prototypical starburst on a <2 pc scale. This study will serve as a touchstone for all future work on the Tarantula Nebula in particular, and on starbursts in general. We will deliver a unified star catalog for all the filters, accompanied by artificial-star tests to quantify completeness and crowding effects. Co-registered stacked images in all filters, maps for the differential reddening and ages and a catalog with the properties of all the star clusters and stellar associations will also be released in a timely fashion. As a treasury survey HTTP will become the definitive catalog of the field, and have lasting value for future studies with ALMA and JWST.

  8. 31 CFR 363.37 - How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect ® account? 363.37 Section 363.37 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE...

  9. 31 CFR 363.37 - How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false How do I purchase and make payment for eligible Treasury securities through my TreasuryDirect ® account? 363.37 Section 363.37 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE...

  10. 31 CFR 363.208 - Can I transfer my marketable Treasury security from my TreasuryDirect ® account to an account in...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... security from my TreasuryDirect ® account to an account in another book-entry system? 363.208 Section 363..., DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Marketable Treasury Securities § 363.208 Can I transfer my marketable Treasury security from my...

  11. 31 CFR 363.206 - How can I transfer my marketable Treasury security into my TreasuryDirect ® account from another...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Treasury security into my TreasuryDirect ® account from another book-entry system? 363.206 Section 363.206... transfer your marketable Treasury security from the commercial book-entry system by contacting the..., DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN...

  12. 31 CFR 363.206 - How can I transfer my marketable Treasury security into my TreasuryDirect ® account from another...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Treasury security into my TreasuryDirect ® account from another book-entry system? 363.206 Section 363.206... transfer your marketable Treasury security from the commercial book-entry system by contacting the..., DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN...

  13. 31 CFR 363.208 - Can I transfer my marketable Treasury security from my TreasuryDirect ® account to an account in...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... security from my TreasuryDirect ® account to an account in another book-entry system? 363.208 Section 363..., DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Marketable Treasury Securities § 363.208 Can I transfer my marketable Treasury security from my...

  14. 31 CFR 363.206 - How can I transfer my marketable Treasury security into my TreasuryDirect ® account from another...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false How can I transfer my marketable... TREASURYDIRECT Marketable Treasury Securities § 363.206 How can I transfer my marketable Treasury security into...Direct. 31 CFR part 357, subpart C, governs the transfer of a marketable book-entry Treasury...

  15. 31 CFR 363.0 - What is the TreasuryDirect ® system?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What is the TreasuryDirect ® system? 363.0 Section 363.0 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued... HELD IN TREASURYDIRECT General § 363.0 What is the TreasuryDirect ® system? The TreasuryDirect system...

  16. 31 CFR 16.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Deposit in Treasury of United States. 16.45 Section 16.45 Money and Finance: Treasury Office of the Secretary of the Treasury REGULATIONS IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 16.45 Deposit in Treasury of United States....

  17. 31 CFR 205.7 - Can a Treasury-State agreement be amended?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Can a Treasury-State agreement be amended? 205.7 Section 205.7 Money and Finance: Treasury Regulations Relating to Money and Finance... Treasury-State Agreement § 205.7 Can a Treasury-State agreement be amended? (a) We or a State may amend a...

  18. Biennial Survey of Education in the United States, 1928-1930. Bulletin, 1931, No. 20. Volume I. Chapter VI: Homemaking Education

    ERIC Educational Resources Information Center

    Whitcomb, Emeline S.

    1931-01-01

    This chapter of the "Biennial Survey of Education in the United States, 1928-1930" focuses on the following topic areas as they relate to homemaking education: Part I: Present trends, contains the following: (a) Contributions rendered; (b) Philosophy changes; (c) Expansion of home economics in our public schools; (d) Home economics required; (e)…

  19. 28 CFR 76.38 - Deposit in the United States Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Deposit in the United States Treasury. 76... States Treasury. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the United States Treasury....

  20. Engineering Test Satellite VI (ETS-VI)

    NASA Technical Reports Server (NTRS)

    Horii, M.; Funakawa, K.

    1991-01-01

    The Engineering Test Satellite-VI (ETS-VI) is being developed as the third Japanese three-axis stabilized engineering test satellite to establish the 2-ton geostationary operational satellite bus system and to demonstrate the high performance satellite communication technology for future operational satellites. The satellite is expected to be stationed at 154 deg east latitude. It will be launched from the Tanegashima Space Center in Japan by a type H-II launch vehicle. The Deep Space Network (DSN) will support the prelaunch compatibility test, data interface verification testing, and launch rehersals. The DSN primary support period is from launch through the final AEF plus 1 hour. Contingency support is from final AEF plus 1 hour until launch plus 1 month. The coverage will consist of all the 26-m antennas as prime and the 34-m antennas at Madrid and Canberra as backup. Maximum support will consist of two 8-hour tracks per station for a 7-day period, plus the contingency support, if required. Information is given in tabular form for DSN support, telemetry, command, and tracking support responsibility.

  1. Division Vi: Interstellar Matter

    NASA Astrophysics Data System (ADS)

    Millar, Tom; Chu, You-Hua; Dyson, John; Breitschwerdt, Dieter; Burton, Mike; Cabrit, Sylvie; Caselli, Paola; de Gouveia Dal Pino, Elisabete; Ferland, Gary; Juvela, Mika; Koo, Bon-Chul; Kwok, Sun; Lizano, Susana; Rozyczka, Michal; Tóth, Viktor; Tsuboi, Masato; Yang, Ji

    2010-05-01

    The business meeting of Division VI was held on Monday 10 October 2009. Apologies had been received in advance from D Breitschwerdt, P Caselli, G Ferland, M Juvela, S Lizano, M Rozyczka, V Tóth, M Tsuboi, J Yang and B-C Koo.

  2. SOCIOECONOMIC INEQUALITIES IN SELF-REPORTED HEALTH AND PHYSICAL FUNCTIONING IN ARGENTINA: FINDINGS FROM THE NATIONAL SURVEY ON QUALITY OF LIFE OF OLDER ADULTS 2012 (ENCaViAM).

    PubMed

    Rodríguez López, Santiago; Colantonio, Sonia E; Celton, Dora E

    2016-11-09

    This study aimed to evaluate educational and income inequalities in self-reported health (SRH), and physical functioning (limitations in Activities of Daily Living (ADL)/Instrumental Activities of Daily Living (IADL)), among 60-year-old and older adults in Argentina. Using cross-sectional data from the Argentinian National Survey on Quality of Life of Older Adults 2012 (Encuesta Nacional sobre Calidad de Vida de Adultos Mayores, ENCaViAM), gender-specific socioeconomic inequalities in SRH and ADL and IADL limitations were studied in relation to educational level and household per capita income. The Relative Index of Inequality (RII) - an index of the relative size of socioeconomic inequalities in health - was used. Socioeconomic inequalities in the studied health indicators were found - except for limitations in ADL among women - favouring socially advantaged groups. The results remained largely significant after full adjustment, suggesting that educational and income inequalities, mainly in SRH and IADL, were robust and somehow independent of age, marital status, physical activity, the use of several medications, depression and the occurrence of falls. The findings add to the existing knowledge on the relative size of the socioeconomic inequalities in subjective health indicators among Argentinian older adults, which are to the detriment of lower socioeconomic groups. The results could be used to inform planning interventions aimed at decreasing socioeconomic inequalities in health, to the benefit of socially disadvantaged adults.

  3. The extended ROSAT-ESO Flux-Limited X-ray Galaxy Cluster Survey (REFLEX II). VI. Effect of massive neutrinos on the cosmological constraints from clusters

    NASA Astrophysics Data System (ADS)

    Böhringer, Hans; Chon, Gayoung

    2015-02-01

    Clusters of galaxies are important probes for the large-scale structure that allow us to test cosmological models. With the REFLEX II galaxy cluster survey we previously derived tight constraints on the cosmological parameters for the matter density, Ωm, and the amplitude parameter of the matter density fluctuations, σ8. Whereas in these previous studies no effect of massive neutrinos was taken into account, we explore these effects in the present publication. We derive cosmological constraints for the sum of the neutrino masses of the conventional three neutrino families in the range Mν = ∑ imνi = 0 to 0.6 eV. The influence on the constraints of Ωm and σ8 for the expected mass range is weak. Interesting constraints on the neutrino properties can be derived by comparing the cluster data with those from the Planck cosmic microwave background observations. The current tension between the Planck results and clusters can formally be resolved with neutrino masses of about Mν = 0.45(±0.28,1σ) eV. While we caution not to consider this a firm measurement because it might also be the result of unresolved systematics, it is interesting that other measurements of the local large-scale structure fluctuation amplitude, like that of cosmic lensing shear, yield similar results and additionally confirm the effect of massive neutrinos. Among the indicators for massive neutrinos, galaxy clusters and in particular our large and well-controlled cluster survey currently provide the best potential for constraints of the total neutrino mass.

  4. 31 CFR Appendix to Subpart E of... - Interest-Computation of Interest on Treasury Bonds, Treasury Notes, and Treasury Certificates of...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 442 623 .144 230 769 .145 027 624 53/8 .146 059 783 .146 857 923 .147 664 835 .148 480 663 51/2 .149... 940 91/4 .253 424 658 .252 732 240 93/8 .256 849 315 .256 147 541 91/2 .260 273 973 .259 562 842 95/8... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Interest-Computation of Interest...

  5. 31 CFR Appendix to Subpart E of... - Interest-Computation of Interest on Treasury Bonds, Treasury Notes, and Treasury Certificates of...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 442 623 .144 230 769 .145 027 624 53/8 .146 059 783 .146 857 923 .147 664 835 .148 480 663 51/2 .149... 940 91/4 .253 424 658 .252 732 240 93/8 .256 849 315 .256 147 541 91/2 .260 273 973 .259 562 842 95/8... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Interest-Computation of Interest...

  6. 31 CFR Appendix to Subpart E of... - Interest-Computation of Interest on Treasury Bonds, Treasury Notes, and Treasury Certificates of...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 442 623 .144 230 769 .145 027 624 53/8 .146 059 783 .146 857 923 .147 664 835 .148 480 663 51/2 .149... 940 91/4 .253 424 658 .252 732 240 93/8 .256 849 315 .256 147 541 91/2 .260 273 973 .259 562 842 95/8... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Interest-Computation of Interest...

  7. Julia Bell and the Treasury of Human Inheritance.

    PubMed

    Harper, Peter S

    2005-04-01

    The Treasury of Human Inheritance represents the most extensive, and one of the earliest series of documentations and analyses of human genetic disorders. Published between 1909 and 1958, from The Galton Laboratory, London, most of the numerous sections were written by Julia Bell, who represents a key figure in the development of human and medical genetics. Her combination of mathematical training, genetic knowledge and clinical expertise yielded numerous important insights into human inheritance first appearing in the Treasury; it remains a valuable scientific as well as an historical record of the genetics of a range of important inherited disorders.

  8. Hα3: an Hα imaging survey of HI selected galaxies from ALFALFA. VI. The role of bars in quenching star formation from z = 3 to the present epoch

    NASA Astrophysics Data System (ADS)

    Gavazzi, G.; Consolandi, G.; Dotti, M.; Fanali, R.; Fossati, M.; Fumagalli, M.; Viscardi, E.; Savorgnan, G.; Boselli, A.; Gutiérrez, L.; Hernández Toledo, H.; Giovanelli, R.; Haynes, M. P.

    2015-08-01

    A growing body of evidence indicates that the star formation rate per unit stellar mass (sSFR) decreases with increasing mass in normal main-sequence star-forming galaxies. Many processes have been advocated as being responsible for this trend (also known as mass quenching), e.g., feedback from active galactic nuclei (AGNs), and the formation of classical bulges. In order to improve our insight into the mechanisms regulating the star formation in normal star-forming galaxies across cosmic epochs, we determine a refined star formation versus stellar mass relation in the local Universe. To this end we use the Hα narrow-band imaging follow-up survey (Hα3) of field galaxies selected from the HI Arecibo Legacy Fast ALFA Survey (ALFALFA) in the Coma and Local superclusters. By complementing this local determination with high-redshift measurements from the literature, we reconstruct the star formation history of main-sequence galaxies as a function of stellar mass from the present epoch up to z = 3. In agreement with previous studies, our analysis shows that quenching mechanisms occur above a threshold stellar mass Mknee that evolves with redshift as ∝ (1 + z)2. Moreover, visual morphological classification of individual objects in our local sample reveals a sharp increase in the fraction of visually classified strong bars with mass, hinting that strong bars may contribute to the observed downturn in the sSFR above Mknee. We test this hypothesis using a simple but physically motivated numerical model for bar formation, finding that strong bars can rapidly quench star formation in the central few kpc of field galaxies. We conclude that strong bars contribute significantly to the red colors observed in the inner parts of massive galaxies, although additional mechanisms are likely required to quench the star formation in the outer regions of massive spiral galaxies. Intriguingly, when we extrapolate our model to higher redshifts, we successfully recover the observed

  9. The Spitzer Survey of Interstellar Clouds in the Gould Belt. VI. The Auriga-California Molecular Cloud Observed with IRAC and MIPS

    NASA Technical Reports Server (NTRS)

    Broekhoven-Fiene, Hannah; Matthews, Brenda C.; Harvey, Paul M.; Gutermuth, Robert A.; Huard, Tracy L.; Tothill, Nicholas F. H.; Nutter, David; Bourke, Tyler L.; DiFrancesco, James; Jorgensen, Jes K.; Allen, Lori E.; Chapman, Nicholas L.; Dunham, Michael M.; Merin, Bruno; Miller, Jennifer F.; Terebey, Susan; Peterson, Dawn E.; Stapelfeldt, Karl R.

    2014-01-01

    We present observations of the Auriga-California Molecular Cloud (AMC) at 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 micrometers observed with the IRAC and MIPS detectors as part of the Spitzer Gould Belt Legacy Survey. The total mapped areas are 2.5 deg(exp 2) with IRAC and 10.47 deg2 with MIPS. This giant molecular cloud is one of two in the nearby Gould Belt of star-forming regions, the other being the Orion A Molecular Cloud (OMC). We compare source counts, colors and magnitudes in our observed region to a subset of the SWIRE data that was processed through our pipeline. Using color-magnitude and color-color diagrams, we find evidence for a substantial population of 166 young stellar objects (YSOs) in the cloud, many of which were previously unknown. Most of this population is concentrated around the LkH(alpha) 101 cluster and the filament extending from it. We present a quantitative description of the degree of clustering and discuss the fraction of YSOs in the region with disks relative to an estimate of the diskless YSO population. Although the AMC is similar in mass, size and distance to the OMC, it is forming about 15 - 20 times fewer stars.

  10. The Spitzer survey of interstellar clouds in the gould belt. VI. The Auriga-California molecular cloud observed with IRAC and MIPS

    SciTech Connect

    Broekhoven-Fiene, Hannah; Matthews, Brenda C.; Harvey, Paul M.; Gutermuth, Robert A.; Huard, Tracy L.; Miller, Jennifer F.; Tothill, Nicholas F. H.; Nutter, David; Bourke, Tyler L.; DiFrancesco, James; Jørgensen, Jes K.; Allen, Lori E.; Chapman, Nicholas L.; Dunham, Michael M.; Merín, Bruno; Terebey, Susan; Peterson, Dawn E.; and others

    2014-05-01

    We present observations of the Auriga-California Molecular Cloud (AMC) at 3.6, 4.5, 5.8, 8.0, 24, 70, and 160 μm observed with the IRAC and MIPS detectors as part of the Spitzer Gould Belt Legacy Survey. The total mapped areas are 2.5 deg{sup 2} with IRAC and 10.47 deg{sup 2} with MIPS. This giant molecular cloud is one of two in the nearby Gould Belt of star-forming regions, the other being the Orion A Molecular Cloud (OMC). We compare source counts, colors, and magnitudes in our observed region to a subset of the SWIRE data that was processed through our pipeline. Using color-magnitude and color-color diagrams, we find evidence for a substantial population of 166 young stellar objects (YSOs) in the cloud, many of which were previously unknown. Most of this population is concentrated around the LkHα 101 cluster and the filament extending from it. We present a quantitative description of the degree of clustering and discuss the relative fraction of YSOs in earlier (Class I and F) and later (Class II) classes compared to other clouds. We perform simple SED modeling of the YSOs with disks to compare the mid-IR properties to disks in other clouds and identify 14 classical transition disk candidates. Although the AMC is similar in mass, size, and distance to the OMC, it is forming about 15-20 times fewer stars.

  11. The MASSIVE Survey. VI. The Spatial Distribution and Kinematics of Warm Ionized Gas in the Most Massive Local Early-type Galaxies

    NASA Astrophysics Data System (ADS)

    Pandya, Viraj; Greene, Jenny E.; Ma, Chung-Pei; Veale, Melanie; Ene, Irina; Davis, Timothy A.; Blakeslee, John P.; Goulding, Andy D.; McConnell, Nicholas J.; Nyland, Kristina; Thomas, Jens

    2017-03-01

    We present the first systematic investigation of the existence, spatial distribution, and kinematics of warm ionized gas as traced by the [O ii] 3727 Å emission line in 74 of the most massive galaxies in the local universe. All of our galaxies have deep integral-field spectroscopy from the volume- and magnitude-limited MASSIVE survey of early-type galaxies with stellar mass {log}({M}* /{M}ȯ )> 11.5 (M K < ‑25.3 mag) and distance D < 108 Mpc. Of the 74 galaxies in our sample, we detect warm ionized gas in 28, which yields a global detection fraction of 38 ± 6% down to a typical [O ii] equivalent width limit of 2 Å. MASSIVE fast rotators are more likely to have gas than MASSIVE slow rotators with detection fractions of 80 ± 10% and 28 ± 6%, respectively. The spatial extents span a wide range of radii (0.6–18.2 kpc; 0.1–4R e ), and the gas morphologies are diverse, with 17/28 ≈ 61 ± 9% being centrally concentrated, 8/28 ≈ 29 ± 9% exhibiting clear rotation out to several kiloparsecs, and 3/28 ≈ 11 ± 6% being extended but patchy. Three out of four fast rotators show kinematic alignment between the stars and gas, whereas the two slow rotators with robust kinematic measurements available exhibit kinematic misalignment. Our inferred warm ionized gas masses are roughly ∼105 M ⊙. The emission line ratios and radial equivalent width profiles are generally consistent with excitation of the gas by the old underlying stellar population. We explore different gas origin scenarios for MASSIVE galaxies and find that a variety of physical processes are likely at play, including internal gas recycling, cooling out of the hot gaseous halo, and gas acquired via mergers.

  12. A SINFONI integral field spectroscopy survey for galaxy counterparts to damped Lyman α systems - VI. Metallicity and geometry as gas flow probes

    NASA Astrophysics Data System (ADS)

    Péroux, Céline; Quiret, Samuel; Rahmani, Hadi; Kulkarni, Varsha P.; Epinat, Benoit; Milliard, Bruno; Straka, Lorrie A.; York, Donald G.; Rahmati, Alireza; Contini, Thierry

    2016-03-01

    The use of background quasars provides a powerful tool to probe the cool gas in the circumgalactic medium of foreground galaxies. Here, we present new observations with SINFONI and X-Shooter of absorbing-galaxy candidates at z = 0.7-1. We report the detection with both instruments of the Hα emission line of one sub-damped Lyman α (sub-DLA) at zabs = 0.941 87 with log N(H I) = 19.38^{+0.10}_{-0.15} towards SDSS J002133.27+004300.9. We estimate the star formation rate: SFR = 3.6 ± 2.2 M⊙ yr-1 in that system. A detailed kinematic study indicates a dynamical mass Mdyn = 109.9±0.4 M⊙ and a halo mass Mhalo = 1011.9±0.5 M⊙. In addition, we report the [O II] detection with X-Shooter of another DLA at zabs = 0.7402 with log N(H I) = 20.4 ± 0.1 towards Q0052+0041 and an estimated SFR of 5.3 ± 0.7 M⊙ yr-1. Three other objects are detected in the continuum with X-Shooter but the nature and redshift of two of these objects are unconstrained due to the absence of emission lines, while the third object might be at the redshift of the quasar. We use the objects detected in our whole N(H I)-selected SINFONI survey to compute the metallicity difference between the galaxy and the absorbing gas, δ _{H I}(X), where a positive (negative) value indicates infall (outflow). We compare this quantity with the quasar line-of-sight alignment with the galaxy's major (minor) axis, another tracer of infall (outflow). We find that these quantities do not correlate as expected from simple assumptions. Additional observations are necessary to relate these two independent probes of gas flows around galaxies.

  13. 31 CFR 363.202 - What marketable Treasury securities may I purchase and hold through my TreasuryDirect ® account?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... security that is available for purchase through the TreasuryDirect ® website. One day each week, marketable securities that are scheduled for auction within 8 weeks will be made available on the TreasuryDirect...

  14. 31 CFR 363.202 - What marketable Treasury securities may I purchase and hold through my TreasuryDirect ® account?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... security that is available for purchase through the TreasuryDirect ® website. One day each week, marketable securities that are scheduled for auction within 8 weeks will be made available on the TreasuryDirect...

  15. 31 CFR 363.202 - What marketable Treasury securities may I purchase and hold through my TreasuryDirect ® account?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... security that is available for purchase through the TreasuryDirect ® website. One day each week, marketable securities that are scheduled for auction within 8 weeks will be made available on the TreasuryDirect...

  16. 31 CFR 356.20 - How does the Treasury determine auction awards?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false How does the Treasury determine auction awards? 356.20 Section 356.20 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT SALE AND ISSUE...

  17. 31 CFR 8.35 - Assistance from disbarred or suspended persons and former Treasury employees.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Assistance from disbarred or suspended persons and former Treasury employees. 8.35 Section 8.35 Money and Finance: Treasury Office of the... Restrictions Relating to Practice § 8.35 Assistance from disbarred or suspended persons and former Treasury...

  18. 31 CFR 542.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 542.802 Section 542.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SYRIAN SANCTIONS...

  19. 31 CFR 542.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 542.802 Section 542.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SYRIAN SANCTIONS...

  20. 31 CFR 542.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 542.802 Section 542.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SYRIAN SANCTIONS...

  1. 31 CFR 542.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 542.802 Section 542.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SYRIAN SANCTIONS...

  2. 31 CFR 542.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Delegation by the Secretary of the Treasury. 542.802 Section 542.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SYRIAN SANCTIONS...

  3. 31 CFR 548.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 548.802 Section 548.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS...

  4. 31 CFR 548.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 548.802 Section 548.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS...

  5. 31 CFR 548.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Delegation by the Secretary of the Treasury. 548.802 Section 548.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS...

  6. 31 CFR 548.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 548.802 Section 548.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS...

  7. 31 CFR 548.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 548.802 Section 548.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS...

  8. 31 CFR 223.15 - Paid up capital and surplus for Treasury rating purposes; how determined.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Paid up capital and surplus for Treasury rating purposes; how determined. 223.15 Section 223.15 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL...

  9. 31 CFR 357.24 - Availability and disclosure of Legacy Treasury Direct ® records.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Federal Reserve Bank to which the inquiry is made, the identity and right of the requester to the... Treasury Direct ® records. 357.24 Section 357.24 Money and Finance: Treasury Regulations Relating to Money... REGULATIONS GOVERNING BOOK-ENTRY TREASURY BONDS, NOTES AND BILLS HELD IN TREASURY/RESERVE AUTOMATED DEBT ENTRY...

  10. 31 CFR 357.24 - Availability and disclosure of Legacy Treasury Direct ® records.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Federal Reserve Bank to which the inquiry is made, the identity and right of the requester to the... Treasury Direct ® records. 357.24 Section 357.24 Money and Finance: Treasury Regulations Relating to Money... REGULATIONS GOVERNING BOOK-ENTRY TREASURY BONDS, NOTES AND BILLS HELD IN TREASURY/RESERVE AUTOMATED DEBT ENTRY...

  11. 31 CFR 586.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 586.802 Section 586.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FEDERAL REPUBLIC OF...

  12. 31 CFR 356.0 - What authority does the Treasury have to sell and issue securities?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What authority does the Treasury have to sell and issue securities? 356.0 Section 356.0 Money and Finance: Treasury Regulations Relating to... CIRCULAR, PUBLIC DEBT SERIES NO. 1-93) General Information § 356.0 What authority does the Treasury have to...

  13. 31 CFR 375.0 - What authority does the Treasury have to redeem its securities?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What authority does the Treasury have to redeem its securities? 375.0 Section 375.0 Money and Finance: Treasury Regulations Relating to... MARKETABLE TREASURY SECURITIES REDEMPTION OPERATIONS General Information § 375.0 What authority does the...

  14. 31 CFR 340.0 - Authority for sale of Treasury bonds through competitive bidding.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Authority for sale of Treasury bonds through competitive bidding. 340.0 Section 340.0 Money and Finance: Treasury Regulations Relating to Money... REGULATIONS GOVERNING THE SALE OF TREASURY BONDS THROUGH COMPETITIVE BIDDING § 340.0 Authority for sale of...

  15. 31 CFR 549.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Treasury. 549.802 Section 549.802 Money and Finance: Treasury Regulations Relating to Money and Finance... Procedures § 549.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of the Treasury is authorized to take pursuant to Executive Order 13441 of August 1, 2007 (72 FR 43499, Aug. 3...

  16. 31 CFR 549.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Treasury. 549.802 Section 549.802 Money and Finance: Treasury Regulations Relating to Money and Finance... Procedures § 549.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of the Treasury is authorized to take pursuant to Executive Order 13441 of August 1, 2007 (72 FR 43499, Aug. 3...

  17. 31 CFR 537.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 537.802 Section 537.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BURMESE SANCTIONS...

  18. 31 CFR 375.30 - Does the Treasury have any discretion in this process?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Does the Treasury have any discretion... TREASURY SECURITIES REDEMPTION OPERATIONS Miscellaneous Provisions § 375.30 Does the Treasury have any discretion in this process? (a) We have the discretion to: (1) Accept or reject any offers or...

  19. 31 CFR 356.22 - Does the Treasury have any limitations on auction awards?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Does the Treasury have any limitations on auction awards? 356.22 Section 356.22 Money and Finance: Treasury Regulations Relating to Money..., PUBLIC DEBT SERIES NO. 1-93) Determination of Auction Awards; Settlement § 356.22 Does the Treasury...

  20. 31 CFR 543.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 543.802 Section 543.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY CôTE D'IVOIRE SANCTIONS...

  1. 31 CFR 536.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 536.802 Section 536.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  2. 31 CFR 536.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Delegation by the Secretary of the Treasury. 536.802 Section 536.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  3. 31 CFR 536.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 536.802 Section 536.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  4. 31 CFR 536.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 536.802 Section 536.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  5. 31 CFR 536.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 536.802 Section 536.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  6. 31 CFR 375.21 - When and how will the Treasury announce the redemption operation results?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false When and how will the Treasury announce the redemption operation results? 375.21 Section 375.21 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC...

  7. 31 CFR 375.21 - When and how will the Treasury announce the redemption operation results?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false When and how will the Treasury announce the redemption operation results? 375.21 Section 375.21 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL...

  8. 31 CFR 558.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 558.802 Section 558.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOUTH SUDAN SANCTIONS...

  9. 31 CFR 363.11 - Who is eligible to open a TreasuryDirect® account?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Who is eligible to open a TreasuryDirect® account? 363.11 Section 363.11 Money and Finance: Treasury Regulations Relating to Money and... GOVERNING SECURITIES HELD IN TREASURYDIRECT General Provisions Governing Securities Held in TreasuryDirect...

  10. 31 CFR 363.200 - What Treasury securities does this subpart govern?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What Treasury securities does this subpart govern? 363.200 Section 363.200 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT...

  11. 31 CFR 538.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 538.802 Section 538.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SUDANESE SANCTIONS...

  12. 39 CFR 760.1 - Treasury Department regulations; applicability to Postal Service.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Treasury Department regulations; applicability to... OBLIGATIONS; DISBURSEMENT POSTAL MONEY ORDERS APPLICABILITY OF TREASURY DEPARTMENT REGULATIONS § 760.1 Treasury Department regulations; applicability to Postal Service. The provisions of Treasury...

  13. 31 CFR 515.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 515.802 Section 515.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY CUBAN ASSETS CONTROL...

  14. 31 CFR 357.11 - Laws governing other interests in Treasury securities.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Laws governing other interests in Treasury securities. 357.11 Section 357.11 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT...

  15. 31 CFR 544.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 544.802 Section 544.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS...

  16. 31 CFR 15.737-9 - Receipt of information concerning former Treasury employee.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Receipt of information concerning former Treasury employee. 15.737-9 Section 15.737-9 Money and Finance: Treasury Office of the Secretary of the Treasury POST EMPLOYMENT CONFLICT OF INTEREST Administrative Enforcement Proceedings §...

  17. 31 CFR 597.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 597.802 Section 597.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN TERRORIST...

  18. 31 CFR 596.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 596.802 Section 596.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TERRORISM LIST GOVERNMENTS...

  19. 31 CFR 575.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 575.802 Section 575.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQI SANCTIONS...

  20. 31 CFR 593.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 593.802 Section 593.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FORMER LIBERIAN REGIME OF...

  1. 31 CFR 205.6 - What is a Treasury-State agreement?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What is a Treasury-State agreement? 205.6 Section 205.6 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE RULES AND PROCEDURES...

  2. 31 CFR 588.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 588.802 Section 588.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WESTERN BALKANS...

  3. 31 CFR 500.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 500.802 Section 500.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN ASSETS CONTROL...

  4. 31 CFR 585.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 585.802 Section 585.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FEDERAL REPUBLIC OF...

  5. 31 CFR 560.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 560.802 Section 560.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN TRANSACTIONS...

  6. 31 CFR 539.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 539.802 Section 539.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION...

  7. 31 CFR 546.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 546.802 Section 546.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DARFUR SANCTIONS...

  8. 31 CFR 587.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 587.802 Section 587.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FEDERAL REPUBLIC OF...

  9. 31 CFR 541.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 541.802 Section 541.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS...

  10. 31 CFR 537.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 537.802 Section 537.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BURMESE SANCTIONS...

  11. 31 CFR 598.803 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 598.803 Section 598.803 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN NARCOTICS KINGPIN...

  12. 31 CFR 363.50 - What Treasury securities does this subpart govern?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What Treasury securities does this subpart govern? 363.50 Section 363.50 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT...

  13. 31 CFR 309.5 - Acceptance of Treasury bills for various purposes.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Acceptance of Treasury bills for various purposes. 309.5 Section 309.5 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT ISSUE AND SALE...

  14. 31 CFR 594.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 594.802 Section 594.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY GLOBAL TERRORISM...

  15. 31 CFR 595.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 595.802 Section 595.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TERRORISM SANCTIONS...

  16. 31 CFR 540.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 540.802 Section 540.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY HIGHLY ENRICHED URANIUM...

  17. 31 CFR 363.2 - What agency administers TreasuryDirect ®?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What agency administers TreasuryDirect ®? 363.2 Section 363.2 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT REGULATIONS...

  18. 31 CFR 552.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 552.802 Section 552.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY YEMEN SANCTIONS REGULATIONS...

  19. 31 CFR 552.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 552.802 Section 552.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY YEMEN SANCTIONS REGULATIONS...

  20. 81 FR 3927 - Notice Seeking Public Comment on the Evolution of the Treasury Market Structure

    Federal Register 2010, 2011, 2012, 2013, 2014

    2016-01-22

    ... January 22, 2016 Part III Department of the Treasury Notice Seeking Public Comment on the Evolution of the... / Notices#0;#0; ] DEPARTMENT OF THE TREASURY Notice Seeking Public Comment on the Evolution of the Treasury...) Further study of the evolution of the U.S. Treasury market and the implications for market structure and...

  1. 31 CFR 545.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 545.802 Section 545.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TALIBAN (AFGHANISTAN)...

  2. 31 CFR 562.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Delegation by the Secretary of the Treasury. 562.802 Section 562.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS...

  3. 31 CFR 562.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 562.802 Section 562.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS...

  4. 31 CFR 562.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 562.802 Section 562.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS...

  5. 31 CFR 562.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 562.802 Section 562.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS...

  6. 31 CFR 510.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 510.802 Section 510.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  7. 31 CFR 510.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 510.802 Section 510.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  8. 31 CFR 510.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 510.802 Section 510.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  9. 31 CFR 510.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Delegation by the Secretary of the Treasury. 510.802 Section 510.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  10. 31 CFR 537.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 537.802 Section 537.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BURMESE SANCTIONS...

  11. 31 CFR 551.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the Treasury. 551.802 Section 551.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS...

  12. 31 CFR 551.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 551.802 Section 551.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS...

  13. 31 CFR 551.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Delegation by the Secretary of the Treasury. 551.802 Section 551.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS...

  14. 31 CFR 551.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the Treasury. 551.802 Section 551.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS...

  15. 31 CFR 551.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Delegation by the Secretary of the Treasury. 551.802 Section 551.802 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS...

  16. 31 CFR 547.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Delegation by the Secretary of the Treasury. 547.802 Section 547.802 Money and Finance: Treasury Regulations Relating to Money and Finance... SANCTIONS REGULATIONS Procedures § 547.802 Delegation by the Secretary of the Treasury. Any action that the...

  17. THE OPTICALLY UNBIASED GRB HOST (TOUGH) SURVEY. VI. RADIO OBSERVATIONS AT z {approx}< 1 AND CONSISTENCY WITH TYPICAL STAR-FORMING GALAXIES

    SciTech Connect

    Michalowski, M. J.; Dunlop, J. S.; Kamble, A.; Kaplan, D. L.; Hjorth, J.; Malesani, D.; Fynbo, J. P. U.; Kruehler, T.; Reinfrank, R. F.; Bonavera, L.; Ibar, E.; Garrett, M. A.; Jakobsson, P.; Levan, A. J.; Massardi, M.; Pal, S.; Sollerman, J.; Tanvir, N. R.; Van der Horst, A. J.; and others

    2012-08-20

    The objective of this paper is to determine the level of obscured star formation activity and dust attenuation in a sample of gamma-ray burst (GRB) hosts, and to test the hypothesis that GRB hosts have properties consistent with those of the general star-forming galaxy populations. We present a radio continuum survey of all z < 1 GRB hosts in The Optically Unbiased GRB Host (TOUGH) sample supplemented with radio data for all (mostly pre-Swift) GRB-SN hosts discovered before 2006 October. We present new radio data for 22 objects and have obtained a detection for three of them (GRB 980425, 021211, 031203; none in the TOUGH sample), increasing the number of radio-detected GRB hosts from two to five. The star formation rate (SFR) for the GRB 021211 host of {approx}825 M{sub Sun} yr{sup -1}, the highest ever reported for a GRB host, places it in the category of ultraluminous infrared galaxies. We found that at least {approx}63% of GRB hosts have SFR < 100 M{sub Sun} yr{sup -1} and at most {approx}8% can have SFR > 500 M{sub Sun} yr{sup -1}. For the undetected hosts the mean radio flux (<35 {mu}Jy 3{sigma}) corresponds to an average SFR < 15 M{sub Sun} yr{sup -1}. Moreover, {approx}> 88% of the z {approx}< 1 GRB hosts have ultraviolet dust attenuation A{sub UV} < 6.7 mag (visual attenuation A{sub V} < 3 mag). Hence, we did not find evidence for large dust obscuration in a majority of GRB hosts. Finally, we found that the distributions of SFRs and A{sub UV} of GRB hosts are consistent with those of Lyman break galaxies, H{alpha} emitters at similar redshifts, and of galaxies from cosmological simulations. The similarity of the GRB population with other star-forming galaxies is consistent with the hypothesis that GRBs, a least at z {approx}< 1, trace a large fraction of all star formation, and are therefore less biased indicators than once thought.

  18. 31 CFR 5.21 - What does a Treasury entity do upon receipt of a request to offset the salary of a Treasury...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Collect Debts Owed to Other Federal Agencies § 5.21 What does a Treasury entity do upon receipt of a... another Federal agency before the debt is paid in full, the Treasury entity will notify the creditor... receipt of a request to offset the salary of a Treasury entity employee to collect a debt owed by the...

  19. 31 CFR 5.21 - What does a Treasury entity do upon receipt of a request to offset the salary of a Treasury...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Collect Debts Owed to Other Federal Agencies § 5.21 What does a Treasury entity do upon receipt of a... another Federal agency before the debt is paid in full, the Treasury entity will notify the creditor... receipt of a request to offset the salary of a Treasury entity employee to collect a debt owed by the...

  20. 31 CFR 5.21 - What does a Treasury entity do upon receipt of a request to offset the salary of a Treasury...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Collect Debts Owed to Other Federal Agencies § 5.21 What does a Treasury entity do upon receipt of a... another Federal agency before the debt is paid in full, the Treasury entity will notify the creditor... receipt of a request to offset the salary of a Treasury entity employee to collect a debt owed by the...

  1. 31 CFR 5.21 - What does a Treasury entity do upon receipt of a request to offset the salary of a Treasury...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Collect Debts Owed to Other Federal Agencies § 5.21 What does a Treasury entity do upon receipt of a... another Federal agency before the debt is paid in full, the Treasury entity will notify the creditor... receipt of a request to offset the salary of a Treasury entity employee to collect a debt owed by the...

  2. 31 CFR 5.21 - What does a Treasury entity do upon receipt of a request to offset the salary of a Treasury...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Collect Debts Owed to Other Federal Agencies § 5.21 What does a Treasury entity do upon receipt of a... another Federal agency before the debt is paid in full, the Treasury entity will notify the creditor... receipt of a request to offset the salary of a Treasury entity employee to collect a debt owed by the...

  3. 31 CFR Appendix A to Part 5 - Treasury Directive 34-01-Waiving Claims Against Treasury Employees for Erroneous Payments

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Directive 34-01 Date: July 12, 2000. Sunset Review: July 12, 2004. Subject: Waiving Claims Against Treasury... policies and procedures for waiving claims by the Government against an employee for erroneous payments of...) Promptly act to collect the erroneous overpayment, following established debt collection policies...

  4. Cosmic Dust VI

    NASA Astrophysics Data System (ADS)

    Kimura, Hiroshi; Kolokolova, Ludmilla; Li, Aigen; Inoue, Akio K.; Jäger, Cornelia

    2014-10-01

    This special issue is primarily devoted to the 6th meeting on Cosmic Dust (COSMIC DUST VI), which was held at CPS (Center for Planetary Science) in Kobe, Japan, on August 5-9, 2013. This meeting was coordinated in an order where a friendly and welcoming atmosphere persuaded the participants of the meeting to develop human relations and interactions among themselves. This has been our interdisciplinary approach to answering the question of where dust comes from and where dust goes. We briefly review some of the exciting papers presented at the meeting and provide perspectives for the development of cosmic dust research.

  5. Frequency of Oxygen VI in Intervening QSO Absorption Systems

    NASA Astrophysics Data System (ADS)

    Burles, Scott; Tytler, David

    1994-12-01

    We have conducted the first survey for QSO with O VI lambda lambda 1032,1038 absorption lines. We obtained medium resolution (R ~ 1300), high signal-to-noise (~ 20) spectra of 11 QSOs (0.53<= zem <=2.08) taken with the Faint Object Spectrograph from the Hubble Space Telescope Archive. The O VI doublet is found exclusively in the Lyman-alpha forest. All previous surveys of metal lines in QSO absorption systems were done redward of Lyalpha emission, avoiding blending due to Lyman-alpha forest clouds. The higher density of lines in the Lyman-alpha forest demands new stringent criteria to ensure the identification of the O VI doublet. We used simulated spectra to determine the statistical significance of lines indentified in the Lyman-alpha forest. We found 12 O VI doublets and 9 are expected to be real. Six constitute a uniform sample with both lines exceeding a rest equivalent width of W_r =0.21 Angstroms. The number of O VI doublets per unit redshift is = 1.0 +/-0.6 at a mean absorption redshift of zave = 0.9. For comparable W_r the density of O VI absorbers is similar to Mg II (Tytler et al 1986; Steidel & Sargent 1992) and C IV absorbers (Sargent et al 1988; Bahcall et al 1993). We searched for other common ions in the O VI absorption systems. Out of 8 O VI absorption systems in which C IV is also found, C IV is stronger in all except zabs=1.0828 towards PG1206+459 which we believe is collisionally ionized. A rough estimate of the cosmological mass density of O VI is carried out. If we assume that O VI lines are linear, we get a lower limit of Omega (OVI) >= 3 times 10(-9) h(-1}_{100) . Since O > O VI, if the mean metal abundance were below 0.002 solar, then the accompanying Hydrogen and Helium would account for all baryons in the universe. We conclude that mean abundances are above 0.002 solar, and much greater if the gas is not highly ionized (O >> O VI).

  6. The distribution and kinematics of interstellar O VI in the Milky Way

    NASA Astrophysics Data System (ADS)

    Sarma, R.; Pathak, A.; Murthy, Jayant; Sarma, J. K.

    2017-02-01

    We present the results of a survey of interstellar O VI absorption in the Milky Way (MW) towards 69 stars in the Large Magellanic Cloud obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). The integrated MW O VI column densities log N(O VI) are in the range from 13.68 to 14.73 with a mean of 14.26_{-0.09}^{+0.07} atoms cm-2. The O VI exponential scale height is found to be 2.28 ± 1.06 kpc. The O VI column density correlates with the Doppler parameter b. The O VI velocity dispersion ranges from 14.0 to 91.6 with an average value of 62.7 km s-1. These high values of the velocity dispersion reveal the effect of turbulence, multiple velocity components and collision on broad O VI profiles. There is a significant variation of the O VI column density on all scales studied (0.0025°-6.35°). The smallest scale for which O VI column density variations has been found is Δθ ˜ 9 arcsec. A comparison of the O VI velocity profiles with Fe II indicates the presence of intermediate-velocity cloud and/or high-velocity cloud components in the O VI absorption.

  7. 31 CFR 356.0 - What authority does the Treasury have to sell and issue securities?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... AND ISSUE OF MARKETABLE BOOK-ENTRY TREASURY BILLS, NOTES, AND BONDS (DEPARTMENT OF THE TREASURY... sell and issue securities? Chapter 31 of Title 31 of the United States Code authorizes the Secretary of...

  8. 31 CFR 537.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BURMESE SANCTIONS REGULATIONS Procedures § 537.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of the...

  9. 31 CFR 515.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY CUBAN ASSETS CONTROL REGULATIONS Procedures § 515.802 Delegation by the Secretary of the Treasury. Any action under § 515.201 which the...

  10. 31 CFR 543.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY CôTE D'IVOIRE SANCTIONS REGULATIONS Procedures § 543.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of...

  11. 31 CFR 539.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION TRADE CONTROL REGULATIONS Procedures § 539.802 Delegation by the Secretary of the Treasury. Any action that...

  12. 31 CFR 541.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS REGULATIONS Procedures § 541.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of...

  13. 31 CFR 546.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DARFUR SANCTIONS REGULATIONS Procedures § 546.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of...

  14. 31 CFR 544.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION PROLIFERATORS SANCTIONS REGULATIONS Procedures § 544.802 Delegation by the Secretary of the Treasury. Any...

  15. 31 CFR 515.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY CUBAN ASSETS CONTROL REGULATIONS Procedures § 515.802 Delegation by the Secretary of the Treasury. Any action under § 515.201 which...

  16. 31 CFR 549.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY LEBANON SANCTIONS REGULATIONS Procedures § 549.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of...

  17. 31 CFR 540.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY HIGHLY ENRICHED URANIUM (HEU) AGREEMENT ASSETS CONTROL REGULATIONS Procedures § 540.802 Delegation by the Secretary of the Treasury....

  18. 31 CFR 547.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DEMOCRATIC REPUBLIC OF THE CONGO SANCTIONS REGULATIONS Procedures § 547.802 Delegation by the Secretary of the Treasury. Any action that...

  19. 31 CFR 538.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Delegation by the Secretary of the... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SUDANESE SANCTIONS REGULATIONS Procedures § 538.802 Delegation by the Secretary of the Treasury. Any action which the Secretary of...

  20. 12 CFR 7.2020 - Acquisition and holding of shares as treasury stock.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... stock. 7.2020 Section 7.2020 Banks and Banking COMPTROLLER OF THE CURRENCY, DEPARTMENT OF THE TREASURY... treasury stock. (a) Acquisition of outstanding shares. Pursuant to 12 U.S.C. 59, including the requirements... acquire its outstanding shares and hold them as treasury stock, if the acquisition and retention of the...

  1. 12 CFR 7.2020 - Acquisition and holding of shares as treasury stock.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... stock. 7.2020 Section 7.2020 Banks and Banking COMPTROLLER OF THE CURRENCY, DEPARTMENT OF THE TREASURY... treasury stock. (a) Acquisition of outstanding shares. Pursuant to 12 U.S.C. 59, including the requirements... acquire its outstanding shares and hold them as treasury stock, if the acquisition and retention of the...

  2. 12 CFR 7.2020 - Acquisition and holding of shares as treasury stock.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... stock. 7.2020 Section 7.2020 Banks and Banking COMPTROLLER OF THE CURRENCY, DEPARTMENT OF THE TREASURY... treasury stock. (a) Acquisition of outstanding shares. Pursuant to 12 U.S.C. 59, including the requirements... acquire its outstanding shares and hold them as treasury stock, if the acquisition and retention of the...

  3. 31 CFR 306.22 - Exchange of Treasury Bonds, Investment Series B-1975-80.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Series B-1975-80. 306.22 Section 306.22 Money and Finance: Treasury Regulations Relating to Money and..., Investment Series B-1975-80. Bonds of this series presented for exchange for 11/2 percent 5-year Treasury... series of EA or EO Treasury notes to be delivered to (inserting the name and address of the person...

  4. 31 CFR 306.22 - Exchange of Treasury Bonds, Investment Series B-1975-80.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Investment Series B-1975-80. 306.22 Section 306.22 Money and Finance: Treasury Regulations Relating to Money..., Investment Series B-1975-80. Bonds of this series presented for exchange for 11/2 percent 5-year Treasury... series of EA or EO Treasury notes to be delivered to (inserting the name and address of the person...

  5. 31 CFR 306.22 - Exchange of Treasury Bonds, Investment Series B-1975-80.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Series B-1975-80. 306.22 Section 306.22 Money and Finance: Treasury Regulations Relating to Money and..., Investment Series B-1975-80. Bonds of this series presented for exchange for 11/2 percent 5-year Treasury... series of EA or EO Treasury notes to be delivered to (inserting the name and address of the person...

  6. 31 CFR 306.22 - Exchange of Treasury Bonds, Investment Series B-1975-80.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., Investment Series B-1975-80. 306.22 Section 306.22 Money and Finance: Treasury Regulations Relating to Money... Treasury Bonds, Investment Series B-1975-80. Bonds of this series presented for exchange for 11/2 percent 5... for the current series of EA or EO Treasury notes to be delivered to (inserting the name and...

  7. 31 CFR 306.22 - Exchange of Treasury Bonds, Investment Series B-1975-80.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Series B-1975-80. 306.22 Section 306.22 Money and Finance: Treasury Regulations Relating to Money and..., Investment Series B-1975-80. Bonds of this series presented for exchange for 11/2 percent 5-year Treasury... series of EA or EO Treasury notes to be delivered to (inserting the name and address of the person...

  8. 76 FR 75781 - Treasury Inflation-Protected Securities Issued at a Premium

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-05

    ... Internal Revenue Service 26 CFR Part 1 RIN 1545-BK46 Treasury Inflation-Protected Securities Issued at a... document contains temporary regulations that provide guidance on the tax treatment of Treasury Inflation... INFORMATION: Background Treasury Inflation-Protected Securities (TIPS) are securities issued by the...

  9. 76 FR 75829 - Treasury Inflation-Protected Securities Issued at a Premium

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-05

    ... Internal Revenue Service 26 CFR Part 1 RIN 1545-BK45 Treasury Inflation-Protected Securities Issued at a... guidance on the tax treatment of Treasury Inflation-Protected Securities issued with more than a de minimis... the coupon bond method described in Sec. 1.1275-7(d) applies to Treasury...

  10. 77 FR 15319 - Treasury Inflation-Protected Securities Issued at a Premium; Hearing Cancellation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Part 1 RIN 1545-BK45 Treasury Inflation-Protected Securities Issued at a... proposed regulations ] (REG-130777-11), providing guidance on the tax treatment of Treasury...

  11. 19 CFR Appendix to 19 Cfr Part 0 - Treasury Department Order No. 100-16

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...; DEPARTMENT OF THE TREASURY TRANSFERRED OR DELEGATED AUTHORITY Pt. 0, App. Appendix to 19 CFR Part 0—Treasury...) of the Act, there is hereby delegated to the Secretary of Homeland Security the authority related to... Security of general authority over Customs revenue functions vested in the Secretary of the Treasury as set...

  12. 31 CFR 285.12 - Transfer of debts to Treasury for collection.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Transfer of debts to Treasury for collection. 285.12 Section 285.12 Money and Finance: Treasury Regulations Relating to Money and Finance... administrative offset. Administrative offset is one type of collection tool used by FMS and...

  13. 31 CFR 285.12 - Transfer of debts to Treasury for collection.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Transfer of debts to Treasury for collection. 285.12 Section 285.12 Money and Finance: Treasury Regulations Relating to Money and Finance... administrative offset. Administrative offset is one type of collection tool used by FMS and...

  14. 31 CFR 589.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Treasury. 589.802 Section 589.802 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Procedures § 589.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of... of the determination of sectors of the Russian Federation economy under Section 1(a)(i) of Executive...

  15. 31 CFR 561.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Treasury. 561.802 Section 561.802 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Procedures § 561.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of..., 2010 (75 FR 60567, October 1, 2010), pursuant to section 10 of Executive Order 13599 of February 5...

  16. 31 CFR 544.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Treasury. 544.802 Section 544.802 Money and Finance: Treasury Regulations Relating to Money and Finance... PROLIFERATORS SANCTIONS REGULATIONS Procedures § 544.802 Delegation by the Secretary of the Treasury. Any action..., 2005 (70 FR 38567, July 1, 2005), and any further Executive Orders relating to the national emergency...

  17. 31 CFR 544.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Treasury. 544.802 Section 544.802 Money and Finance: Treasury Regulations Relating to Money and Finance... PROLIFERATORS SANCTIONS REGULATIONS Procedures § 544.802 Delegation by the Secretary of the Treasury. Any action..., 2005 (70 FR 38567, July 1, 2005), and any further Executive Orders relating to the national emergency...

  18. 31 CFR 561.802 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Treasury. 561.802 Section 561.802 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Procedures § 561.802 Delegation by the Secretary of the Treasury. Any action that the Secretary of..., 2010 (75 FR 60567, October 1, 2010), pursuant to section 10 of Executive Order 13599 of February 5...

  19. 31 CFR 285.12 - Transfer of debts to Treasury for collection.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Transfer of debts to Treasury for collection. 285.12 Section 285.12 Money and Finance: Treasury Regulations Relating to Money and Finance... will agree, in writing, to a collection strategy which includes parameters for entering into compromise...

  20. 77 FR 13069 - Department of the Treasury Acquisition Regulation; Internet Payment Platform; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-05

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY 48 CFR Chapter 10 RIN 1505-AC41 Department of the Treasury Acquisition Regulation; Internet Payment Platform; Correction AGENCY: Office of the Procurement Executive, Treasury. ACTION: Proposed rule...

  1. 31 CFR 356.33 - Does the Treasury have any discretion in the auction process?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Does the Treasury have any discretion... CIRCULAR, PUBLIC DEBT SERIES NO. 1-93) Miscellaneous Provisions § 356.33 Does the Treasury have any discretion in the auction process? (a) We have the discretion to: (1) Accept, reject, or refuse to...

  2. 31 CFR 357.20 - Securities account in Legacy Treasury Direct ®.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Securities System (Legacy Treasury Direct) § 357.20 Securities account in Legacy Treasury Direct ®. (a) Account. A securities account consists of: (1) An account master record, and (2) A securities portfolio... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Securities account in Legacy...

  3. 31 CFR 15.737-9 - Receipt of information concerning former Treasury employee.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance: Treasury 1 2013-07-01 2013-07-01 false Receipt of information concerning former Treasury employee. 15.737-9 Section 15.737-9 Money and Finance: Treasury Office of the Secretary... shall promptly make a written report thereof, which report or a copy thereof shall be forwarded to the...

  4. 31 CFR 309.9 - Tenders; acceptance by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Tenders; acceptance by the Secretary of the Treasury. 309.9 Section 309.9 Money and Finance: Treasury Regulations Relating to Money and... the acceptable prices offered and will make public announcement thereof those submitting tenders will...

  5. 29 CFR 22.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Deposit in Treasury of United States. 22.45 Section 22.45... Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31 U.S.C. 3806(g) ....

  6. 22 CFR 521.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Deposit in Treasury of United States. 521.45... REMEDIES ACT § 521.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided...

  7. 6 CFR 13.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 6 Domestic Security 1 2010-01-01 2010-01-01 false Deposit in Treasury of United States. 13.45... CIVIL REMEDIES § 13.45 Deposit in Treasury of United States. All amounts collected pursuant to this part will be deposited as miscellaneous receipts in the Treasury of the United States, except as provided...

  8. 5 CFR 185.145 - Deposit in Treasury of the United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Deposit in Treasury of the United States... REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.145 Deposit in Treasury of the United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the...

  9. 24 CFR 200.158 - Applicability of Treasury regulations to debenture transactions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Applicability of Treasury... Mortgage Insurance Procedures and Processing Claims for Losses § 200.158 Applicability of Treasury regulations to debenture transactions. The Department of the Treasury acts as fiscal agent for...

  10. 40 CFR 27.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Deposit in Treasury of United States... CIVIL REMEDIES § 27.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided...

  11. 48 CFR 1019.202-70 - The Treasury Mentor-Protégé Program.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false The Treasury Mentor-Protégé Program. 1019.202-70 Section 1019.202-70 Federal Acquisition Regulations System DEPARTMENT OF THE TREASURY SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS Policies 1019.202-70 The Treasury...

  12. 45 CFR 79.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Deposit in Treasury of United States. 79.45... CIVIL REMEDIES § 79.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided...

  13. 12 CFR 561.54 - United States Treasury Time Deposit Open Account.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false United States Treasury Time Deposit Open Account. 561.54 Section 561.54 Banks and Banking OFFICE OF THRIFT SUPERVISION, DEPARTMENT OF THE TREASURY DEFINITIONS FOR REGULATIONS AFFECTING ALL SAVINGS ASSOCIATIONS § 561.54 United States Treasury Time...

  14. 41 CFR 105-70.045 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Deposit in Treasury of... Administration 70-IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 105-70.045 Deposit in Treasury... receipts in the Treasury of the United States, except as provided in 31 U.S.C. 3806(g)....

  15. 12 CFR 308.544 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Deposit in Treasury of United States. 308.544... Treasury of United States. All amounts collected pursuant to this subpart will be deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31 U.S.C. 3806(g)....

  16. 34 CFR 33.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Deposit in Treasury of United States. 33.45 Section 33....45 Deposit in Treasury of United States. All amounts collected pursuant to this part are deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31 U.S.C. 3806(g)....

  17. 15 CFR 25.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Deposit in Treasury of United States... Civil Remedies § 25.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided...

  18. 20 CFR 355.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Deposit in Treasury of United States. 355.45... Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31 U.S.C. 3806(g)....

  19. 10 CFR 1013.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Deposit in Treasury of United States. 1013.45 Section 1013... § 1013.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31...

  20. 22 CFR 224.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Deposit in Treasury of United States. 224.45... CIVIL REMEDIES ACT § 224.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except...

  1. 22 CFR 35.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Deposit in Treasury of United States. 35.45... REMEDIES § 35.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31...

  2. 49 CFR 31.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Deposit in Treasury of United States. 31.45....45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the United States, except as provided in 31...

  3. 43 CFR 35.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Deposit in Treasury of United States. 35... REMEDIES FOR FRAUDULENT CLAIMS AND STATEMENTS § 35.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as miscellaneous receipts in the Treasury of the...

  4. 81 FR 15607 - Notice Seeking Public Comment on the Evolution of the Treasury Market Structure

    Federal Register 2010, 2011, 2012, 2013, 2014

    2016-03-23

    ... Notice Seeking Public Comment on the Evolution of the Treasury Market Structure AGENCY: Office of the...) published in the Federal Register a request for information (RFI) on the Evolution of the Treasury Market... January 22, 2016, Treasury published in the Federal Register a request for information on the Evolution of...

  5. 31 CFR 309.9 - Tenders; acceptance by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Tenders; acceptance by the Secretary... TREASURY BILLS § 309.9 Tenders; acceptance by the Secretary of the Treasury. At the time fixed for closing... acceptable prices offered and will make public announcement thereof those submitting tenders will be...

  6. The Panchromatic Hubble Andromeda Treasury. XV. The BEAST: Bayesian Extinction and Stellar Tool

    NASA Astrophysics Data System (ADS)

    Gordon, Karl D.; Fouesneau, Morgan; Arab, Heddy; Tchernyshyov, Kirill; Weisz, Daniel R.; Dalcanton, Julianne J.; Williams, Benjamin F.; Bell, Eric F.; Bianchi, Luciana; Boyer, Martha; Choi, Yumi; Dolphin, Andrew; Girardi, Léo; Hogg, David W.; Kalirai, Jason S.; Kapala, Maria; Lewis, Alexia R.; Rix, Hans-Walter; Sandstrom, Karin; Skillman, Evan D.

    2016-08-01

    We present the Bayesian Extinction And Stellar Tool (BEAST), a probabilistic approach to modeling the dust extinguished photometric spectral energy distribution of an individual star while accounting for observational uncertainties common to large resolved star surveys. Given a set of photometric measurements and an observational uncertainty model, the BEAST infers the physical properties of the stellar source using stellar evolution and atmosphere models and constrains the line of sight extinction using a newly developed mixture model that encompasses the full range of dust extinction curves seen in the Local Group. The BEAST is specifically formulated for use with large multi-band surveys of resolved stellar populations. Our approach accounts for measurement uncertainties and any covariance between them due to stellar crowding (both systematic biases and uncertainties in the bias) and absolute flux calibration, thereby incorporating the full information content of the measurement. We illustrate the accuracy and precision possible with the BEAST using data from the Panchromatic Hubble Andromeda Treasury. While the BEAST has been developed for this survey, it can be easily applied to similar existing and planned resolved star surveys. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the Data Archive at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.

  7. 31 CFR 363.12 - Who may purchase and hold book-entry securities in TreasuryDirect ®?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Who may purchase and hold book-entry securities in TreasuryDirect ®? 363.12 Section 363.12 Money and Finance: Treasury Regulations Relating to... TreasuryDirect § 363.12 Who may purchase and hold book-entry securities in TreasuryDirect ®? (a) A Treasury...

  8. Hubble Tarantula Treasury Project: Unraveling Tarantula's Web. I. Observational Overview and First Results

    NASA Technical Reports Server (NTRS)

    Sabbi, E.; Anderson, J.; Lennon, D. J.; van der Marel, R. P.; Aloisi, A.; Boyer, Martha L.; Cignoni, M.; De Marchi, G.; De Mink, S. E.; Evans, C. J.; hide

    2013-01-01

    The Hubble Tarantula Treasury Project (HTTP) is an ongoing panchromatic imaging survey of stellar populations in the Tarantula Nebula in the Large Magellanic Cloud that reaches into the sub-solar mass regime (<0.5 Stellar Mass). HTTP utilizes the capability of the Hubble Space Telescope to operate the Advanced Camera for Surveys and the Wide Field Camera 3 in parallel to study this remarkable region in the near-ultraviolet, optical, and near-infrared spectral regions, including narrow-band H(alpha) images. The combination of all these bands provides a unique multi-band view. The resulting maps of the stellar content of the Tarantula Nebula within its main body provide the basis for investigations of star formation in an environment resembling the extreme conditions found in starburst galaxies and in the early universe. Access to detailed properties of individual stars allows us to begin to reconstruct the temporal and spatial evolution of the stellar skeleton of the Tarantula Nebula over space and time on a sub-parsec scale. In this first paper we describe the observing strategy, the photometric techniques, and the upcoming data products from this survey and present preliminary results obtained from the analysis of the initial set of near-infrared observations.

  9. HUBBLE TARANTULA TREASURY PROJECT: UNRAVELING TARANTULA'S WEB. I. OBSERVATIONAL OVERVIEW AND FIRST RESULTS

    SciTech Connect

    Sabbi, E.; Anderson, J.; Van der Marel, R. P.; Aloisi, A.; De Mink, S. E.; Gordon, K.; Koekemoer, A. M.; Panagia, N.; Lennon, D. J.; Boyer, M. L.; Cignoni, M.; De Marchi, G.; Evans, C. J.; Gallagher, J. S. III; Ryon, J. E.; Gouliermis, D. A.; Grebel, E. K.; Larsen, S. S.; and others

    2013-09-15

    The Hubble Tarantula Treasury Project (HTTP) is an ongoing panchromatic imaging survey of stellar populations in the Tarantula Nebula in the Large Magellanic Cloud that reaches into the sub-solar mass regime (<0.5 M{sub Sun }). HTTP utilizes the capability of the Hubble Space Telescope to operate the Advanced Camera for Surveys and the Wide Field Camera 3 in parallel to study this remarkable region in the near-ultraviolet, optical, and near-infrared spectral regions, including narrow-band H{alpha} images. The combination of all these bands provides a unique multi-band view. The resulting maps of the stellar content of the Tarantula Nebula within its main body provide the basis for investigations of star formation in an environment resembling the extreme conditions found in starburst galaxies and in the early universe. Access to detailed properties of individual stars allows us to begin to reconstruct the temporal and spatial evolution of the stellar skeleton of the Tarantula Nebula over space and time on a sub-parsec scale. In this first paper we describe the observing strategy, the photometric techniques, and the upcoming data products from this survey and present preliminary results obtained from the analysis of the initial set of near-infrared observations.

  10. Hubble Tarantula Treasury Project: Unraveling Tarantula's Web. I. Observational Overview and First Results

    NASA Astrophysics Data System (ADS)

    Sabbi, E.; Anderson, J.; Lennon, D. J.; van der Marel, R. P.; Aloisi, A.; Boyer, M. L.; Cignoni, M.; de Marchi, G.; de Mink, S. E.; Evans, C. J.; Gallagher, J. S., III; Gordon, K.; Gouliermis, D. A.; Grebel, E. K.; Koekemoer, A. M.; Larsen, S. S.; Panagia, N.; Ryon, J. E.; Smith, L. J.; Tosi, M.; Zaritsky, D.

    2013-09-01

    The Hubble Tarantula Treasury Project (HTTP) is an ongoing panchromatic imaging survey of stellar populations in the Tarantula Nebula in the Large Magellanic Cloud that reaches into the sub-solar mass regime (<0.5 M ⊙). HTTP utilizes the capability of the Hubble Space Telescope to operate the Advanced Camera for Surveys and the Wide Field Camera 3 in parallel to study this remarkable region in the near-ultraviolet, optical, and near-infrared spectral regions, including narrow-band Hα images. The combination of all these bands provides a unique multi-band view. The resulting maps of the stellar content of the Tarantula Nebula within its main body provide the basis for investigations of star formation in an environment resembling the extreme conditions found in starburst galaxies and in the early universe. Access to detailed properties of individual stars allows us to begin to reconstruct the temporal and spatial evolution of the stellar skeleton of the Tarantula Nebula over space and time on a sub-parsec scale. In this first paper we describe the observing strategy, the photometric techniques, and the upcoming data products from this survey and present preliminary results obtained from the analysis of the initial set of near-infrared observations. Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA Inc., under NASA contract NAS 5-26555.

  11. On VI at intermediate redshift

    NASA Astrophysics Data System (ADS)

    Simcoe, R.; Sargent, W.; Rauch, M.

    2001-05-01

    Recent observations using the FUSE satellite and HST/STIS have emphasized the contribution of shock-heated O VI to the local baryon budget. Also, photoionized O VI is well known to be an excellent tracer of metal enrichment in the lowest density regions of the IGM. Searches for oxygen at higher redshift from the ground have been limited by severe bending of the doublet with lines in the lyman-alpha and lyman-beta forests. However, there exists a growing body of both direct (at high column density) and statistical (at low column density) evidence that suggests the presence of O VI at a wide range of associated H I column densities, even at large lookback times. We will discuss progress on a systematic, large pathlength search for O VI absorption in the spectra of a sample of quasars observed with the Keck I telescope and HIRES spectrograph, and we will describe our strategy for dealing with the blending problem. Where O VI is unambiguously detected, we compare its abundance and kinematics with those of other highly ionized species. We will also discuss the initial results of statistcial searches for oxygen at the weakest levels of absorption.

  12. Hubble Tarantula Treasury Project - IV. The extinction law

    NASA Astrophysics Data System (ADS)

    De Marchi, Guido; Panagia, Nino; Sabbi, Elena; Lennon, Daniel; Anderson, Jay; van der Marel, Roeland; Cignoni, Michele; Grebel, Eva K.; Larsen, Søren; Zaritsky, Dennis; Zeidler, Peter; Gouliermis, Dimitrios; Aloisi, Alessandra

    2016-02-01

    We report on the study of interstellar extinction across the Tarantula Nebula (30 Doradus), in the Large Magellanic Cloud, using observations from the Hubble Tarantula Treasury Project in the 0.3-1.6 μm range. The considerable and patchy extinction inside the nebula causes about 3500 red clump stars to be scattered along the reddening vector in the colour-magnitude diagrams, thereby allowing an accurate determination of the reddening slope in all bands. The measured slope of the reddening vector is remarkably steeper in all bands than in the the Galactic diffuse interstellar medium. At optical wavelengths, the larger ratio of total-to-selective extinction, namely RV = 4.5 ± 0.2, implies the presence of a grey component in the extinction law, due to a larger fraction of large grains. The extra large grains are most likely ices from supernova ejecta and will significantly alter the extinction properties of the region until they sublimate in 50-100 Myr. We discuss the implications of this extinction law for the Tarantula Nebula and in general for regions of massive star formation in galaxies. Our results suggest that fluxes of strongly star-forming regions are likely to be underestimated by a factor of about 2 in the optical.

  13. Debt-equity distinction: another approach under new Treasury regulations

    SciTech Connect

    Eggleston, D.

    1981-09-01

    A capital structure consisting of both debt and equity investment can offer substantial tax advantages compared to capitalizing a corportion with equity only. Especially in the case of closely held oil and gas corporations, federal income-tax consequences may be the controlling influence in choosing between funding a corporation with debt obligations or stock. The new Treasury rules attempt to provide objective criteria for distinguishing debt from equity. However, a subjective evaluation of the many factors previously considered by the courts will still be necessary when determining the fair market value of an instrument, the reasonableness of the interest rate, the existence of excessive debt, and the appropriate discount rate for calculating the present value of fixed payments on a hybrid instrument. The Regulations do establish objective rules for determining whether an instrument will be treated as stock or indebtedness and isolate the situations which require factual determinations. This is an improvement over the subjective approach of the courts. Although the rules are complex, most corporations will now be able to issue debt instruments with a high degree of confidence that they will not be recharacterized as equity. 103 references.

  14. 31 CFR 363.36 - What securities can I purchase and hold in my TreasuryDirect ® account?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What securities can I purchase and hold in my TreasuryDirect ® account? 363.36 Section 363.36 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC...

  15. 31 CFR 363.36 - What securities can I purchase and hold in my TreasuryDirect ® account?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What securities can I purchase and hold in my TreasuryDirect ® account? 363.36 Section 363.36 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC...

  16. 31 CFR 20.400 - What are my responsibilities as a(n) Department of the Treasury awarding official?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 1 2014-07-01 2014-07-01 false What are my responsibilities as a(n) Department of the Treasury awarding official? 20.400 Section 20.400 Money and Finance: Treasury Office of the Secretary of the Treasury GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL...

  17. 31 CFR 20.400 - What are my responsibilities as a(n) Department of the Treasury awarding official?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance: Treasury 1 2012-07-01 2012-07-01 false What are my responsibilities as a(n) Department of the Treasury awarding official? 20.400 Section 20.400 Money and Finance: Treasury Office of the Secretary of the Treasury GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL...

  18. 31 CFR 20.400 - What are my responsibilities as a(n) Department of the Treasury awarding official?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false What are my responsibilities as a(n) Department of the Treasury awarding official? 20.400 Section 20.400 Money and Finance: Treasury Office of the Secretary of the Treasury GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL...

  19. 31 CFR 20.400 - What are my responsibilities as a(n) Department of the Treasury awarding official?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance: Treasury 1 2013-07-01 2013-07-01 false What are my responsibilities as a(n) Department of the Treasury awarding official? 20.400 Section 20.400 Money and Finance: Treasury Office of the Secretary of the Treasury GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL...

  20. 31 CFR 20.400 - What are my responsibilities as a(n) Department of the Treasury awarding official?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance: Treasury 1 2011-07-01 2011-07-01 false What are my responsibilities as a(n) Department of the Treasury awarding official? 20.400 Section 20.400 Money and Finance: Treasury Office of the Secretary of the Treasury GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL...

  1. 31 CFR 315.3 - Converting definitive savings bonds to book-entry bonds in New Treasury Direct.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... to book-entry bonds in New Treasury Direct. 315.3 Section 315.3 Money and Finance: Treasury.... SAVINGS NOTES General Information § 315.3 Converting definitive savings bonds to book-entry bonds in New... book-entry bonds through New Treasury Direct, an online system for holding Treasury securities. The...

  2. 31 CFR 306.23 - Securities eligible to be held in the TREASURY DIRECT Book-entry Securities System.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... TREASURY DIRECT Book-entry Securities System. 306.23 Section 306.23 Money and Finance: Treasury Regulations... Securities eligible to be held in the TREASURY DIRECT Book-entry Securities System. (a) Eligible issues. The... conversion to the TREASURY DIRECT Book-entry Securities System. The notice shall specify the period...

  3. 31 CFR 353.3 - Converting definitive savings bonds to book-entry bonds in TreasuryDirect®.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL SERVICE REGULATIONS GOVERNING DEFINITIVE UNITED STATES SAVINGS BONDS, SERIES EE AND HH General Information... TreasuryDirect®, an online system for holding Treasury securities. The Web address for TreasuryDirect® is...

  4. 31 CFR 256.1 - What is Treasury's role in paying awards and settlements from the Judgment Fund?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What is Treasury's role in paying awards and settlements from the Judgment Fund? 256.1 Section 256.1 Money and Finance: Treasury... Information § 256.1 What is Treasury's role in paying awards and settlements from the Judgment Fund? (a) The...

  5. 31 CFR 363.12 - Who may purchase and hold book-entry securities in TreasuryDirect ®?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Who may purchase and hold book-entry securities in TreasuryDirect ®? 363.12 Section 363.12 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT...

  6. 31 CFR 363.34 - What happens if an owner becomes incompetent after opening a TreasuryDirect ® account?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What happens if an owner becomes incompetent after opening a TreasuryDirect ® account? 363.34 Section 363.34 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE...

  7. 31 CFR 12.5 - Prohibitions not applicable in areas designated by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Prohibitions not applicable in areas designated by the Secretary of the Treasury. 12.5 Section 12.5 Money and Finance: Treasury Office of the Secretary of the Treasury RESTRICTION OF SALE AND DISTRIBUTION OF TOBACCO PRODUCTS § 12.5 Prohibitions...

  8. 31 CFR 5.10 - How will Treasury entities use administrative offset (offset of non-tax Federal payments) to...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... administrative offset (offset of non-tax Federal payments) to collect a Treasury debt? 5.10 Section 5.10 Money... Federal payments) to collect a Treasury debt? (a) Centralized administrative offset through the Treasury... collect Treasury debts by the offset of Federal payments. See § 5.9(c) of this part. If not already...

  9. 31 CFR 5.10 - How will Treasury entities use administrative offset (offset of non-tax Federal payments) to...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... administrative offset (offset of non-tax Federal payments) to collect a Treasury debt? 5.10 Section 5.10 Money... Federal payments) to collect a Treasury debt? (a) Centralized administrative offset through the Treasury... collect Treasury debts by the offset of Federal payments. See § 5.9(c) of this part. If not already...

  10. 31 CFR 5.10 - How will Treasury entities use administrative offset (offset of non-tax Federal payments) to...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... administrative offset (offset of non-tax Federal payments) to collect a Treasury debt? 5.10 Section 5.10 Money... Federal payments) to collect a Treasury debt? (a) Centralized administrative offset through the Treasury... collect Treasury debts by the offset of Federal payments. See § 5.9(c) of this part. If not already...

  11. 31 CFR 5.10 - How will Treasury entities use administrative offset (offset of non-tax Federal payments) to...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... administrative offset (offset of non-tax Federal payments) to collect a Treasury debt? 5.10 Section 5.10 Money... Federal payments) to collect a Treasury debt? (a) Centralized administrative offset through the Treasury... collect Treasury debts by the offset of Federal payments. See § 5.9(c) of this part. If not already...

  12. 31 CFR 315.3 - Converting definitive savings bonds to book-entry bonds in New Treasury Direct.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... book-entry bonds in New Treasury Direct. 315.3 Section 315.3 Money and Finance: Treasury Regulations.... SAVINGS NOTES General Information § 315.3 Converting definitive savings bonds to book-entry bonds in New... book-entry bonds through New Treasury Direct, an online system for holding Treasury securities. The Web...

  13. 31 CFR 360.3 - Converting definitive savings bonds to book-entry bonds in New Treasury Direct.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... book-entry bonds in New Treasury Direct. 360.3 Section 360.3 Money and Finance: Treasury Regulations... Converting definitive savings bonds to book-entry bonds in New Treasury Direct. Series I savings bonds that were originally issued as definitive bonds may be converted to book-entry bonds through New Treasury...

  14. The Panchromatic Hubble Andromeda Treasury: A Bayesian Method for Constraining the High Mass Stellar IMF

    NASA Astrophysics Data System (ADS)

    Weisz, Daniel R.; Fouesneau, M.; Hogg, D. W.; Rix, H. W.; Dalcanton, J. J.; Johnson, L. C.; PHAT Collaboration

    2012-01-01

    The high mass stellar initial mass function (IMF) underpins virtually all of extragalactic astrophysics. However, measurements of the IMF above a few solar masses exhibit significant dispersion, and recent evidence is suggestive of environmentally dependent IMF variations. The Panchromatic Hubble Andromeda Treasury (PHAT)program is a multi-wavelength survey including hundreds of resolved young clusters extending from the near-UV to near-IR, allowing for a systematic study of the high mass stellar IMF for a large set of clusters over a wide range of environments. Here, we present a new Bayesian technique aimed at constraining the properties of the high mass IMF for resolved stars in individual clusters. This method probabilistically considers uncertainties in stellar mass, completeness, and cluster membership, and uses a Markov Chain Monte Carlo (MCMC) to sample the posterior probability distribution. The MCMC analysis allows us to constrain both the slope of the IMF and the upper stellar mass limit for a single cluster, while fully exploring all associated uncertainties and degeneracies. We present simulations that explore the potential biases introduced by the number of observed stars, stellar mass uncertainties, completeness, aging effects and age spread, and binary stars. The application of this technique to the young cluster population in the PHAT survey will result in the one the most comprehensive investigations of the high mass stellar IMF to date. PHAT is supported by HST GO-12055 administered by NASA.

  15. THE PANCHROMATIC HUBBLE ANDROMEDA TREASURY. X. ULTRAVIOLET TO INFRARED PHOTOMETRY OF 117 MILLION EQUIDISTANT STARS

    SciTech Connect

    Williams, Benjamin F.; Dalcanton, Julianne J.; Weisz, Daniel R.; Byler, Nell; Johnson, L. C. E-mail: jd@astro.washington.edu E-mail: lcjohnso@astro.washington.edu; and others

    2014-11-01

    We have measured stellar photometry with the Hubble Space Telescope Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys in near ultraviolet (F275W, F336W), optical (F475W, F814W), and near infrared (F110W, F160W) bands for 117 million resolved stars in M31. As part of the Panchromatic Hubble Andromeda Treasury survey, we measured photometry with simultaneous point-spread function (PSF) fitting across all bands and at all source positions after precise astrometric image alignment (<5-10 mas accuracy). In the outer disk, the photometry reaches a completeness-limited depth of F475W ∼ 28, while in the crowded, high surface brightness bulge, the photometry reaches F475W ∼ 25. We find that simultaneous photometry and optimized measurement parameters significantly increase the detection limit of the lowest-resolution filters (WFC3/IR) providing color-magnitude diagrams (CMDs) that are up to 2.5 mag deeper when compared with CMDs from WFC3/IR photometry alone. We present extensive analysis of the data quality including comparisons of luminosity functions and repeat measurements, and we use artificial star tests to quantify photometric completeness, uncertainties and biases. We find that the largest sources of systematic error in the photometry are due to spatial variations in the PSF models and charge transfer efficiency corrections. This stellar catalog is the largest ever produced for equidistant sources, and is publicly available for download by the community.

  16. Protostars and Planets VI

    NASA Astrophysics Data System (ADS)

    Beuther, Henrik; Klessen, Ralf S.; Dullemond, Cornelis P.; Henning, Thomas

    star and planet formation. They are used by students to dive into new topics, and they are much valued by experienced researchers as a comprehensive overview of the field with all its interactions. We hope that you will enjoy reading (and learning from) this book as much as we do. The organization of the Protostars and Planets conference was carried out in close collaboration between the Max Planck Institute for Astronomy and the Center for Astronomy of the University Heidelberg, with generous support from the German Science Foundation. This volume is a product of effort and care by many people. First and foremost, we want to acknowledge the 250 contributing authors, as it is only due to their expertise and knowledge that such a comprehensive review compendium in all its depth and breadth is possible. The Protostars and Planets VI conference and this volume was a major undertaking, with support and contributions by many people and institutions. We like to thank the members of the Scientific Advisory Committee who selected the 38 teams and chapters out of more than 120 submitted proposals. Similarly, we are grateful to the reviewers, who provided valuable input and help to the chapter authors. The book would also not have been possible without the great support of Renée Dotson and other staff from USRA’s Lunar and Planetary Institute, who handled the detailed processing of all manuscripts and the production of the book, and of Allyson Carter and other staff from the University of Arizona Press. We are also grateful to Richard Binzel, the General Editor of the Space Science Series, for his constant support during the long process, from the original concept to this final product. Finally, we would like to express a very special thank you to the entire conference local organizing committee, and in particular, Carmen Cuevas and Natali Jurina, for their great commitment to the project and for a very fruitful and enjoyable collaboration.

  17. 31 CFR 340.0 - Authority for sale of Treasury bonds through competitive bidding.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT... offering of bonds. (b) The terms public notice, notices, or announcement as used in this part mean the... public notice, offer Treasury bonds for sale and invite bids therefor. The bonds so offered and the...

  18. 31 CFR 356.30 - When does the Treasury pay principal and interest on securities?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false When does the Treasury pay principal... principal and interest on securities? (a) General. We will pay principal on bills, notes, and bonds on the... date. If any principal or interest payment date is a Saturday, Sunday, or other day on which the...

  19. 31 CFR 356.30 - When does the Treasury pay principal and interest on securities?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false When does the Treasury pay principal... principal and interest on securities? (a) General. We will pay principal on bills, notes, and bonds on the... date. If any principal or interest payment date is a Saturday, Sunday, or other day on which the...

  20. 20 CFR 703.103 - Stock companies holding Treasury certificates of authority.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 4 2013-04-01 2013-04-01 false Stock companies holding Treasury certificates... REGULATIONS Authorization of Insurance Carriers § 703.103 Stock companies holding Treasury certificates of authority. A stock company furnishing evidence that it is authorized to write workmen's...

  1. 20 CFR 703.103 - Stock companies holding Treasury certificates of authority.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Stock companies holding Treasury certificates... REGULATIONS Authorization of Insurance Carriers § 703.103 Stock companies holding Treasury certificates of authority. A stock company furnishing evidence that it is authorized to write workmen's...

  2. 22 CFR 23.2 - Endorsing remittances for deposit in the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Endorsing remittances for deposit in the Treasury. 23.2 Section 23.2 Foreign Relations DEPARTMENT OF STATE FEES AND FUNDS FINANCE AND ACCOUNTING § 23.2 Endorsing remittances for deposit in the Treasury. The Office of Finance—Cashier Unit,...

  3. 31 CFR 363.50 - What Treasury securities does this subpart govern?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... GOVERNING SECURITIES HELD IN TREASURYDIRECT Book-Entry Savings Bonds Purchased Through TreasuryDirect... and Series I book-entry savings bonds that were originally issued as book-entry bonds through Treasury... savings bonds, (3) The owner with beneficiary form of registration of Series E savings bonds in which...

  4. 77 FR 38041 - TRICARE Management Activity Adoption of Department of the Treasury's Administrative Wage...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-26

    ... through offsetting Defense Finance and Accounting Service payments, the provisions of 32 CFR 199.11(f)(6... Treasury's Financial Management Service (FMS), to use administrative wage garnishment as an additional tool... garnishment procedures. The Treasury Financial Manual, Part 4-Chapter 4000, requires agencies...

  5. 78 FR 52857 - Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY Fiscal Service 31 CFR Part 356 Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds Correction In rule document C1-2013-18178 appearing on page 50335 in the issue of August 19, 2013, make...

  6. 78 FR 50335 - Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY Fiscal Service 31 CFR Part 356 Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds Correction In rule document 2013-18178 appearing on pages 46426-46445 in the issue of July 31, 2013, make...

  7. 77 FR 13388 - Treasury Inspector General for Tax Administration; Privacy Act of 1974: Computer Matching Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ... Management Information System ii. IRS Audit Trail and Security Records System [Treasury/IRS 34.037] jj...] nn. Examination Administrative File oo. Audit Information Management System (AIMS) [Treasury/IRS 42... Form 8300 Records rr. Appeals Centralized Data System ss. Criminal Investigation Management...

  8. 34 CFR 33.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 34 Education 1 2012-07-01 2012-07-01 false Deposit in Treasury of United States. 33.45 Section 33.45 Education Office of the Secretary, Department of Education PROGRAM FRAUD CIVIL REMEDIES ACT § 33.45 Deposit in Treasury of United States. All amounts collected pursuant to this part are deposited...

  9. 76 FR 42765 - Departmental Offices; Renewal of the Treasury Borrowing Advisory Committee of the Securities...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY Departmental Offices; Renewal of the Treasury Borrowing Advisory Committee of the Securities Industry and... the Federal Advisory Committee Act, as amended (Pub. L. 92-463; 5 U.S.C. App. 2), with the concurrence...

  10. 29 CFR 2530.200a-2 - Treasury regulations for purposes of the Act.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Treasury regulations for purposes of the Act. 2530.200a-2... RETIREMENT INCOME SECURITY ACT OF 1974 RULES AND REGULATIONS FOR MINIMUM STANDARDS FOR EMPLOYEE PENSION BENEFIT PLANS Scope and General Provisions § 2530.200a-2 Treasury regulations for purposes of the...

  11. 31 CFR 223.15 - Paid up capital and surplus for Treasury rating purposes; how determined.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Paid up capital and surplus for... SERVICE SURETY COMPANIES DOING BUSINESS WITH THE UNITED STATES § 223.15 Paid up capital and surplus for Treasury rating purposes; how determined. The amount of paid up capital and surplus of any such company...

  12. 31 CFR 223.15 - Paid up capital and surplus for Treasury rating purposes; how determined.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Paid up capital and surplus for... SERVICE SURETY COMPANIES DOING BUSINESS WITH THE UNITED STATES § 223.15 Paid up capital and surplus for Treasury rating purposes; how determined. The amount of paid up capital and surplus of any such company...

  13. 31 CFR 223.15 - Paid up capital and surplus for Treasury rating purposes; how determined.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Paid up capital and surplus for... SERVICE SURETY COMPANIES DOING BUSINESS WITH THE UNITED STATES § 223.15 Paid up capital and surplus for Treasury rating purposes; how determined. The amount of paid up capital and surplus of any such company...

  14. 48 CFR 1019.202-70 - The Treasury Mentor Protégé Program.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...) Management guidance relating to financial management, organizational management, overall business management... THE TREASURY SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS Policies 1019.202-70 The Treasury Mentor Protégé Program. (a)—(b) (c) Non-affiliation. For purposes of the Small Business Act, a protégé firm may...

  15. 14 CFR 1264.144 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Deposit in Treasury of United States. 1264.144 Section 1264.144 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL PENALTIES ACT OF 1986 § 1264.144 Deposit in Treasury of United...

  16. 14 CFR § 1264.144 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 5 2014-01-01 2014-01-01 false Deposit in Treasury of United States. § 1264.144 Section § 1264.144 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL PENALTIES ACT OF 1986 § 1264.144 Deposit in Treasury of United...

  17. 29 CFR 22.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 1 2014-07-01 2013-07-01 true Deposit in Treasury of United States. 22.45 Section 22.45 Labor Office of the Secretary of Labor PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 22.45 Deposit in Treasury of United States. All amounts collected pursuant to this part shall be deposited as...

  18. 48 CFR 1019.202-70 - The Treasury Mentor Protégé Program.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...) Management guidance relating to financial management, organizational management, overall business management... THE TREASURY SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS Policies 1019.202-70 The Treasury Mentor Protégé Program. (a)—(b) (c) Non-affiliation. For purposes of the Small Business Act, a protégé firm may...

  19. 48 CFR 1019.202-70 - The Treasury Mentor Protégé Program.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...) Management guidance relating to financial management, organizational management, overall business management... THE TREASURY SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS Policies 1019.202-70 The Treasury Mentor Protégé Program. (a)-(b) (c) Non-affiliation. For purposes of the Small Business Act, a protégé firm may...

  20. 48 CFR 1019.202-70 - The Treasury Mentor Protégé Program.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...) Management guidance relating to financial management, organizational management, overall business management... THE TREASURY SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS Policies 1019.202-70 The Treasury Mentor Protégé Program. (a)-(b) (c) Non-affiliation. For purposes of the Small Business Act, a protégé firm may...

  1. 31 CFR 285.12 - Transfer of debts to Treasury for collection.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... transfer is important to ensure compliance with the agency's policies or programs. Agencies may combine... transfer of such debts would interfere with program goals; and (C) Whether an exemption would be consistent... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Transfer of debts to Treasury for...

  2. 31 CFR 285.12 - Transfer of debts to Treasury for collection.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... the program under which the delinquencies have arisen is such that the transfer of such debts would... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Transfer of debts to Treasury for... AUTHORITIES UNDER THE DEBT COLLECTION IMPROVEMENT ACT OF 1996 Authorities Other Than Offset § 285.12 Transfer...

  3. 26 CFR 1.103-5 - Treasury bond exemption in the case of trusts or partnerships.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... partnerships. 1.103-5 Section 1.103-5 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY....103-5 Treasury bond exemption in the case of trusts or partnerships. (a) When the income of a trust is... income of a partnership is taxable to the individual partners, each partner is entitled to exemption...

  4. 26 CFR 1.103-5 - Treasury bond exemption in the case of trusts or partnerships.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... partnerships. 1.103-5 Section 1.103-5 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY....103-5 Treasury bond exemption in the case of trusts or partnerships. (a) When the income of a trust is... income of a partnership is taxable to the individual partners, each partner is entitled to exemption...

  5. 38 CFR 42.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Deposit in Treasury of United States. 42.45 Section 42.45 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) STANDARDS IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT § 42.45 Deposit in Treasury of...

  6. 38 CFR 42.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Deposit in Treasury of United States. 42.45 Section 42.45 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) STANDARDS IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT § 42.45 Deposit in Treasury of...

  7. 20 CFR 703.103 - Stock companies holding Treasury certificates of authority.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Stock companies holding Treasury certificates... REGULATIONS Authorization of Insurance Carriers § 703.103 Stock companies holding Treasury certificates of authority. A stock company furnishing evidence that it is authorized to write workmen's...

  8. 31 CFR 223.22 - Fees for services of the Treasury Department.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... running to the United States) of surety companies doing business with the United States (see § 223.12(a... (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE SURETY COMPANIES DOING BUSINESS WITH THE UNITED STATES § 223.22 Fees for services of the Treasury Department. (a) Fees shall...

  9. Occurrence of Cr(VI) in drinking water of Greece and relation to the geological background.

    PubMed

    Kaprara, E; Kazakis, N; Simeonidis, K; Coles, S; Zouboulis, A I; Samaras, P; Mitrakas, M

    2015-01-08

    This study provides a survey on potential Cr(VI) exposure attributed to drinking water in Greece. For this reason, a wide sampling and chemical analysis of tap waters from around 600 sites, supplied by groundwater resources, was conducted focusing on areas in which the geological substrate is predominated by ultramafic minerals. Results indicate that although violations of the current chromium regulation limit in tap water are very rare, 25% of cases showed Cr(VI) concentrations above 10 μg/L, whereas Cr(VI) was detectable in 70% of the samples (>2 μg/L). Mineralogy and conditions of groundwater reservoirs were correlated to suggest a possible Cr(VI) leaching mechanism. Higher Cr(VI) values are observed in aquifers in alluvial and neogene sediments of serpentine and amphibolite, originating from the erosion of ophiolithic and metamorphic rocks. In contrast, Cr(VI) concentration in samples from ophiolithic and metamorphic rocks was always below 10 μg/L due to both low contact time and surface area, as verified by low conductivity and salt concentration values. These findings indicate that under specific conditions, pollution of water by Cr(VI) is favorable by a slow MnO2-catalyzed oxidation of soluble Cr(III) to Cr(VI) in which manganese products [Mn(III)/Mn(II)] are probably re-oxidized by oxygen. Copyright © 2014 Elsevier B.V. All rights reserved.

  10. PANCHROMATIC HUBBLE ANDROMEDA TREASURY. XII. MAPPING STELLAR METALLICITY DISTRIBUTIONS IN M31

    SciTech Connect

    Gregersen, Dylan; Seth, Anil C.; Williams, Benjamin F.; Dalcanton, Julianne J.; Johnson, L. C.; Lewis, Alexia R.; Lang, Dustin; Girardi, Leó; Skillman, Evan D.; Bell, Eric; Dolphin, Andrew E.; Fouesneau, Morgan; Guhathakurta, Puragra; Hamren, Katherine M.; Monachesi, Antonela; Olsen, Knut E-mail: aseth@astro.utah.edu

    2015-12-15

    We present a study of spatial variations in the metallicity of old red giant branch stars in the Andromeda galaxy. Photometric metallicity estimates are derived by interpolating isochrones for over seven million stars in the Panchromatic Hubble Andromeda Treasury (PHAT) survey. This is the first systematic study of stellar metallicities over the inner 20 kpc of Andromeda’s galactic disk. We see a clear metallicity gradient of −0.020 ± 0.004 dex kpc{sup −1} from ∼4–20 kpc assuming a constant red giant branch age. This metallicity gradient is derived after correcting for the effects of photometric bias and completeness and dust extinction, and is quite insensitive to these effects. The unknown age gradient in M31's disk creates the dominant systematic uncertainty in our derived metallicity gradient. However, spectroscopic analyses of galaxies similar to M31 show that they typically have small age gradients that make this systematic error comparable to the 1σ error on our metallicity gradient measurement. In addition to the metallicity gradient, we observe an asymmetric local enhancement in metallicity at radii of 3–6 kpc that appears to be associated with Andromeda’s elongated bar. This same region also appears to have an enhanced stellar density and velocity dispersion.

  11. Panchromatic Hubble Andromeda Treasury. XVI. Star Cluster Formation Efficiency and the Clustered Fraction of Young Stars

    NASA Astrophysics Data System (ADS)

    Johnson, L. Clifton; Seth, Anil C.; Dalcanton, Julianne J.; Beerman, Lori C.; Fouesneau, Morgan; Lewis, Alexia R.; Weisz, Daniel R.; Williams, Benjamin F.; Bell, Eric F.; Dolphin, Andrew E.; Larsen, Søren S.; Sandstrom, Karin; Skillman, Evan D.

    2016-08-01

    We use the Panchromatic Hubble Andromeda Treasury survey data set to perform spatially resolved measurements of star cluster formation efficiency (Γ), the fraction of stellar mass formed in long-lived star clusters. We use robust star formation history and cluster parameter constraints, obtained through color-magnitude diagram analysis of resolved stellar populations, to study Andromeda’s cluster and field populations over the last ˜300 Myr. We measure Γ of 4%-8% for young, 10-100 Myr-old populations in M31. We find that cluster formation efficiency varies systematically across the M31 disk, consistent with variations in mid-plane pressure. These Γ measurements expand the range of well-studied galactic environments, providing precise constraints in an H i-dominated, low-intensity star formation environment. Spatially resolved results from M31 are broadly consistent with previous trends observed on galaxy-integrated scales, where Γ increases with increasing star formation rate surface density (ΣSFR). However, we can explain observed scatter in the relation and attain better agreement between observations and theoretical models if we account for environmental variations in gas depletion time (τ dep) when modeling Γ, accounting for the qualitative shift in star formation behavior when transitioning from a H2-dominated to a H i-dominated interstellar medium. We also demonstrate that Γ measurements in high ΣSFR starburst systems are well-explained by τ dep-dependent fiducial Γ models.

  12. Hubble Tarantula Treasury Project V. The Star Cluster Hodge 301: The Old Face of 30 Doradus

    NASA Astrophysics Data System (ADS)

    Cignoni, M.; Sabbi, E.; van der Marel, R. P.; Lennon, D. J.; Tosi, M.; Grebel, E. K.; Gallagher, J. S., III; Aloisi, A.; de Marchi, G.; Gouliermis, D. A.; Larsen, S.; Panagia, N.; Smith, L. J.

    2016-12-01

    Based on color-magnitude diagrams (CMDs) from the Hubble Space Telescope Hubble Tarantula Treasury Project (HTTP) survey, we present the star formation history of Hodge 301, the oldest star cluster in the Tarantula Nebula. The HTTP photometry extends faint enough to reach, for the first time, the cluster pre-main sequence (PMS) turn-on, where the PMS joins the main sequence. Using the location of this feature, along with synthetic CMDs generated with the latest PARSEC models, we find that Hodge 301 is older than previously thought, with an age between 26.5 and 31.5 Myr. From this age, we also estimate that between 38 and 61 Type II supernovae exploded in the region. The same age is derived from the main sequence turn-off, whereas the age derived from the post-main sequence stars is younger and between 20 and 25 Myr. Other relevant parameters are a total stellar mass of ≈8800 ± 800 M ⊙ and average reddening E(B - V) ≈ 0.22-0.24 mag, with a differential reddening δE(B - V) ≈ 0.04 mag. Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA Inc., under NASA contract NAS 5-26555.

  13. Panchromatic Hubble Andromeda Treasury XIII: The Cepheid period-luminosity relation in M31

    NASA Astrophysics Data System (ADS)

    Wagner-Kaiser, R.; Sarajedini, A.; Dalcanton, J. J.; Williams, B. F.; Dolphin, A.

    2015-07-01

    Using Hubble Space Telescope Advanced Camera for Surveys (HST/ACS) and Wide Field Camera 3 (WFC3) observations from the Panchromatic Hubble Andromeda Treasury (PHAT), we present new period-luminosity (P-L) relations for Cepheid variables in M31. Cepheids from several ground-based studies are identified in the PHAT photometry to derive new P-L and Wesenheit P-L relations in the near infrared and visual filters. We derive a distance modulus to M31 of 24.51 ± 0.08 in the IR bands and 24.32 ± 0.09 in the visual bands, including the first P-L relations in the F475W and F814W filters for M31. Our derived visual and IR distance moduli disagree at slightly more than a 1σ level. Differences in the P-L relations between ground-based and HST observations are investigated for a subset of Cepheids. We find a significant discrepancy between ground-based and HST P-L relations with the same Cepheids, suggesting adverse effects from photometric contamination in ground-based Cepheid observations. Additionally, a statistically significant radial trend in the P-L relation is found which does not appear to be explained by metallicity.

  14. Panchromatic Hubble Andromeda Treasury. XII. Mapping Stellar Metallicity Distributions in M31

    NASA Astrophysics Data System (ADS)

    Gregersen, Dylan; Seth, Anil C.; Williams, Benjamin F.; Lang, Dustin; Dalcanton, Julianne J.; Girardi, Leó; Skillman, Evan D.; Bell, Eric; Dolphin, Andrew E.; Fouesneau, Morgan; Guhathakurta, Puragra; Hamren, Katherine M.; Johnson, L. C.; Kalirai, Jason; Lewis, Alexia R.; Monachesi, Antonela; Olsen, Knut

    2015-12-01

    We present a study of spatial variations in the metallicity of old red giant branch stars in the Andromeda galaxy. Photometric metallicity estimates are derived by interpolating isochrones for over seven million stars in the Panchromatic Hubble Andromeda Treasury (PHAT) survey. This is the first systematic study of stellar metallicities over the inner 20 kpc of Andromeda’s galactic disk. We see a clear metallicity gradient of -0.020 ± 0.004 dex kpc-1 from ˜4-20 kpc assuming a constant red giant branch age. This metallicity gradient is derived after correcting for the effects of photometric bias and completeness and dust extinction, and is quite insensitive to these effects. The unknown age gradient in M31's disk creates the dominant systematic uncertainty in our derived metallicity gradient. However, spectroscopic analyses of galaxies similar to M31 show that they typically have small age gradients that make this systematic error comparable to the 1σ error on our metallicity gradient measurement. In addition to the metallicity gradient, we observe an asymmetric local enhancement in metallicity at radii of 3-6 kpc that appears to be associated with Andromeda’s elongated bar. This same region also appears to have an enhanced stellar density and velocity dispersion.

  15. Panchromatic Hubble Andromeda Treasury. XVIII. The High-mass Truncation of the Star Cluster Mass Function

    NASA Astrophysics Data System (ADS)

    Johnson, L. Clifton; Seth, Anil C.; Dalcanton, Julianne J.; Beerman, Lori C.; Fouesneau, Morgan; Weisz, Daniel R.; Bell, Timothy A.; Dolphin, Andrew E.; Sandstrom, Karin; Williams, Benjamin F.

    2017-04-01

    We measure the mass function for a sample of 840 young star clusters with ages between 10 and 300 Myr observed by the Panchromatic Hubble Andromeda Treasury (PHAT) survey in M31. The data show clear evidence of a high-mass truncation: only 15 clusters more massive than {10}4 {M}⊙ are observed, compared to the ˜100 expected for a canonical {M}-2 pure power-law mass function with the same total number of clusters above the catalog completeness limit. Adopting a Schechter function parameterization, we fit a characteristic truncation mass of {M}c={8.5}-1.8+2.8× {10}3 M ⊙. Although previous studies have measured cluster mass function truncations, the characteristic truncation mass we measure is the lowest ever reported. Combining this M31 measurement with previous results, we find that the cluster mass function truncation correlates strongly with the characteristic star formation rate surface density of the host galaxy, where {M}c\\propto < {{{Σ }}}{SFR}{> }˜ 1.1. We also find evidence that suggests the observed M c -{{{Σ }}}{SFR} relation also applies to globular clusters, linking the two populations via a common formation pathway. If so, globular cluster mass functions could be useful tools for constraining the star formation properties of their progenitor host galaxies in the early universe.

  16. Summary report of session VI

    SciTech Connect

    Weiren Chou et al.

    2002-08-19

    This report gives a brief review of the presentations in Session VI of the Ecloud'02 Workshop and summarizes the major points during the discussions. Some points (e.g., the critical mass phenomenon) are not conclusive and even controversial. But it has been agreed that further investigations are warranted. The topic of Session VI in the Ecloud'02 workshop is ''Discussions of future studies, collaborations and possible solutions.'' Half of the session is devoted to presentations, another half to discussions. This report will focus on the latter. There are six presentations: (1) R. Macek, Possible cures to the e-cloud problem; (2) G. Rumolo, Driving the electron-cloud instability by an electron cooler; (3) U. Iriso Ariz, RF test benches for electron-cloud studies; (4) F. Caspers, Stealth clearing electrodes; (5) F. Ruggiero, Future electron-cloud studies at CERN; and (6) E. Perevedentsev, Beam-beam and transverse impedance model.

  17. Directional Mechanosensing in Myosin VI

    NASA Astrophysics Data System (ADS)

    Yang, Yubo; Tehver, Riina

    2013-03-01

    Myosin is a family of versatile motor proteins that perform various tasks, such as organelle transport, anchoring and cell deformation. Although the general mechanism of the motors has been fairly well established, details on dynamic aspects like force response of the motor, and force propagation are yet to be fully understood. In this poster, we present the response of the ATP binding region to force exerted on the tail domain in order to test the proposed tension-dependent gating mechanism of myosin VI processive motion. We employed the Self-Organized Polymer model in a computer simulation to explore the effect. Current results show that the ATP binding domain of myosin VI indeed exhibits tension dependence - both structurally and dynamically.

  18. The State of Basic Math at T-VI: A Report from the Faculty.

    ERIC Educational Resources Information Center

    Sackett, Joe

    As part of an effort to improve basic math instruction at Vocational-Technical Institute (T-VI) in New Mexico, a survey was conducted asking teachers, tutors, and instructional technicians to assess the importance of and student performance on 35 basic math competencies. Survey responses were then related to two national standards of mathematical…

  19. 78 FR 71038 - Proposed Collection: Resolution for Transactions Involving Treasury Securities

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-27

    ...The Department of the Treasury, as part of its continuing effort to reduce paperwork and respondent burden, invites the general public and other Federal agencies to take this opportunity to comment on proposed and/or continuing information collections, as required by the Paperwork Reduction Act of 1995, Public Law 104-13 (44 U.S.C. 3506(c)(2)(A). Currently the Bureau of the Fiscal Service within the Department of the Treasury is soliciting comments concerning the Resolution for Transactions Involving Treasury Securities.

  20. 76 FR 37888 - Survey of Foreign Ownership of U.S. Securities as of June 30, 2011

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY..., Department of the Treasury. ACTION: Notice of reporting requirements. SUMMARY: By this Notice, the Department of the Treasury is informing the public that it is conducting a mandatory survey of foreign ownership...

  1. 77 FR 16116 - Public Input on the Development and Potential Issuance of Treasury Floating Rate Notes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-19

    ... the Assistant Secretary for Financial Markets, Treasury. ACTION: Notice and request for information... Financial Markets. BILLING CODE 4810-39-P ... minimize borrowing costs, better manage its liability profile, enhance market liquidity, and expand...

  2. 1. Photocopy of drawing (from U.S. Corps of Engineers, Treasury ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photocopy of drawing (from U.S. Corps of Engineers, Treasury Department, Washington, D.C., A.B. Young, Architect, 1856) Photographer unknown, Date unknown FRONTISPIECE FOR PLANS OF MARINE HOSPITAL - Marine Hospital, New Orleans, Orleans Parish, LA

  3. 31 CFR 592.702 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ROUGH DIAMONDS CONTROL REGULATIONS... any further Executive orders relating to the Clean Diamond Trade Act (Pub. L. 108-19) may be taken...

  4. 31 CFR 592.702 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ROUGH DIAMONDS CONTROL REGULATIONS... any further Executive orders relating to the Clean Diamond Trade Act (Pub. L. 108-19) may be taken...

  5. 31 CFR 592.702 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ROUGH DIAMONDS CONTROL REGULATIONS... any further Executive orders relating to the Clean Diamond Trade Act (Pub. L. 108-19) may be taken...

  6. 31 CFR 592.702 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ROUGH DIAMONDS CONTROL REGULATIONS... any further Executive orders relating to the Clean Diamond Trade Act (Pub. L. 108-19) may be taken...

  7. 31 CFR 592.702 - Delegation by the Secretary of the Treasury.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ROUGH DIAMONDS CONTROL REGULATIONS... any further Executive orders relating to the Clean Diamond Trade Act (Pub. L. 108-19) may be taken...

  8. Remediation of chromium-slag leakage with electricity cogeneration via a urea-Cr(VI) cell

    PubMed Central

    Yu, Binbin; Zhang, Huimin; Xu, Wei; Li, Gang; Wu, Zucheng

    2014-01-01

    Chromium pollution has been historically widespread throughout the world. Most available remediation technologies often require energy consumption. This study is aimed to develop electrochemical remediation for Cr(VI) in chromium-slag leakage with self-generated electricity. Dynamic leaching experiments of chromium-slag samples were conducted to survey the release and leaching behavior of Cr(VI). Based on previous work, a unique urea-Cr(VI) was designed, in which urea was employed as the fuel and Cr(VI) from the leakage of the dichromate slag served as the oxidant. Furthermore, the electrochemical results showed that the removal percent of Cr(VI) was more than 96% after 18 h with the leakage Cr(VI) concentration of 2.69 mM. The open circuit potential (OCP) varied in the range of 1.56 ~ 1.59 V under different initial Cr(VI) leakage concentrations. The approach explores the feasibility of the promising technique without the need of energy input for simultaneous chromium-slag remediation and generation of electricity. PMID:25168513

  9. Remediation of chromium-slag leakage with electricity cogeneration via a urea-Cr(VI) cell.

    PubMed

    Yu, Binbin; Zhang, Huimin; Xu, Wei; Li, Gang; Wu, Zucheng

    2014-08-29

    Chromium pollution has been historically widespread throughout the world. Most available remediation technologies often require energy consumption. This study is aimed to develop electrochemical remediation for Cr(VI) in chromium-slag leakage with self-generated electricity. Dynamic leaching experiments of chromium-slag samples were conducted to survey the release and leaching behavior of Cr(VI). Based on previous work, a unique urea-Cr(VI) was designed, in which urea was employed as the fuel and Cr(VI) from the leakage of the dichromate slag served as the oxidant. Furthermore, the electrochemical results showed that the removal percent of Cr(VI) was more than 96% after 18 h with the leakage Cr(VI) concentration of 2.69 mM. The open circuit potential (OCP) varied in the range of 1.56 ~ 1.59 V under different initial Cr(VI) leakage concentrations. The approach explores the feasibility of the promising technique without the need of energy input for simultaneous chromium-slag remediation and generation of electricity.

  10. Mucopolysaccharidosis VI: pathophysiology, diagnosis and treatment.

    PubMed

    Harmatz, Paul; Shediac, Renee

    2017-01-01

    Mucopolysaccharidosis VI (MPS VI), or Maroteaux-Lamy syndrome, is an autosomal recessive lysosomal storage disorder caused by deficient activity of the enzyme arylsulfatase B (ASB). Progressive accumulation of glycosaminoglycans (GAGs) in organs and tissues leads to the development of multisystem clinical manifestations. The presentation of MPS VI is genotypically and phenotypically diverse, with a large number of potential disease-causing mutations and a phenotypic spectrum ranging from very slowly to very rapidly progressing disease. Diagnosis of MPS VI relies on presence of clinical features, increased GAG levels in urine or low ASB activity in dried blood spots, and measurement of enzyme activity levels in leukocytes or fibroblasts. The management of MPS VI involves enzyme replacement therapy and medical and surgical treatment of disease manifestations. Liquid chromatography/tandem mass spectrometry of GAG-derived disaccharides in blood or urine is emerging as a valuable method in the diagnosis, prognosis and assessment of therapeutic efficacy in MPS VI.

  11. DOD Financial Management: Ongoing Challenges with Reconciling Navy and Marine Corps Fund Balance with Treasury

    DTIC Science & Technology

    2011-12-01

    their FBWT. The Treasury Financial Manual and DOD’s Financial Management Regulation require DOD components to perform monthly FBWT reconciliations and...STARS–HCM Standard Accounting and Reporting System– Headquarters Level SOP standard-operating procedure TCIS Treasury Check Information...interagency transactions reported through the IPAC system. Page 9 GAO-12-132 Fund Balance Reconciliations b TCIS is used to record all

  12. DOD Financial Management: Improvements Needed in the Navys Audit Readiness Efforts for Fund Balance with Treasury

    DTIC Science & Technology

    2016-08-01

    DOD FINANCIAL MANAGEMENT Improvements Needed in the Navy’s Audit Readiness Efforts for Fund Balance with Treasury...in the Navy’s Audit Readiness Efforts for Fund Balance with Treasury Why GAO Did This Study The National Defense Authorization Act for Fiscal Year...statements, which cover activities and balances of executive branch agencies, including DOD. GAO’s objective in this report was to determine the extent to

  13. 76 FR 18062 - U.S. Securities; Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds; Book...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ... TreasuryDirect was implemented, the goal was to provide an up- to-date system that would eventually become.../Reserve Automated Debt Entry System (TRADES) and Legacy Treasury Direct; Securities Held in TreasuryDirect... reduce costs and duplication of systems, the Department of the Treasury (Treasury) is limiting options...

  14. 31 CFR 363.39 - Will I receive a confirmation of my request to purchase a Treasury security?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... ® account, we will make available a printable online confirmation of your request. Final confirmation will... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Will I receive a confirmation of my request to purchase a Treasury security? 363.39 Section 363.39 Money and Finance: Treasury Regulations...

  15. 31 CFR 363.39 - Will I receive a confirmation of my request to purchase a Treasury security?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... ® account, we will make available a printable online confirmation of your request. Final confirmation will... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Will I receive a confirmation of my request to purchase a Treasury security? 363.39 Section 363.39 Money and Finance: Treasury Regulations...

  16. 31 CFR 363.39 - Will I receive a confirmation of my request to purchase a Treasury security?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... ® account, we will make available a printable online confirmation of your request. Final confirmation will... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Will I receive a confirmation of my request to purchase a Treasury security? 363.39 Section 363.39 Money and Finance: Treasury Regulations...

  17. 31 CFR 363.39 - Will I receive a confirmation of my request to purchase a Treasury security?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... ® account, we will make available a printable online confirmation of your request. Final confirmation will... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Will I receive a confirmation of my request to purchase a Treasury security? 363.39 Section 363.39 Money and Finance: Treasury Regulations...

  18. 31 CFR 363.39 - Will I receive a confirmation of my request to purchase a Treasury security?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... ® account, we will make available a printable online confirmation of your request. Final confirmation will... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Will I receive a confirmation of my request to purchase a Treasury security? 363.39 Section 363.39 Money and Finance: Treasury Regulations...

  19. 76 FR 11079 - Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds; Minimum Interest Rate

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-01

    ... Debt Series No. 1-93] Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds; Minimum... Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds \\1\\ (``UOC'' or ``Auction Rules'') to... of marketable book-entry Treasury bills, notes, and bonds. \\2\\ The term reopening is defined at...

  20. 78 FR 59228 - Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds; Corrections

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY Fiscal Service 31 CFR Part 356 Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds... following correcting amendments: PART 356--SALE AND ISSUE OF MARKETABLE BOOK-ENTRY TREASURY BILLS,...

  1. 31 CFR 360.3 - Converting definitive savings bonds to book-entry bonds in TreasuryDirect®.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL SERVICE REGULATIONS GOVERNING DEFINITIVE UNITED STATES SAVINGS BONDS, SERIES I General Information § 360.3... system for holding Treasury securities. The Web address for TreasuryDirect® is www.treasurydirect.gov...

  2. 31 CFR 315.3 - Converting definitive savings bonds to book-entry bonds in New Treasury Direct.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL SERVICE REGULATIONS GOVERNING U.S. SAVINGS BONDS, SERIES A, B, C, D, E, F, G, H, J, AND K, AND U.S... book-entry bonds through New Treasury Direct, an online system for holding Treasury securities. The Web...

  3. 31 CFR 2.2 - Access to classified information by historical researchers, former Treasury Presidential and Vice...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... historical researchers, former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents. 2.2 Section 2.2 Money and Finance: Treasury Office of the Secretary of the..., former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents...

  4. 31 CFR 2.2 - Access to classified information by historical researchers, former Treasury Presidential and Vice...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... historical researchers, former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents. 2.2 Section 2.2 Money and Finance: Treasury Office of the Secretary of the..., former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents...

  5. 31 CFR 2.2 - Access to classified information by historical researchers, former Treasury Presidential and Vice...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... historical researchers, former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents. 2.2 Section 2.2 Money and Finance: Treasury Office of the Secretary of the..., former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents...

  6. 31 CFR 2.2 - Access to classified information by historical researchers, former Treasury Presidential and Vice...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... historical researchers, former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents. 2.2 Section 2.2 Money and Finance: Treasury Office of the Secretary of the..., former Treasury Presidential and Vice Presidential appointees, and former Presidents and Vice Presidents...

  7. 48 CFR 1052.219-73 - Department of the Treasury Mentor-Protégé Program.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Department of the Treasury... DEPARTMENT OF THE TREASURY CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT CLAUSES Texts of Provisions and Clauses 1052.219-73 Department of the Treasury Mentor-Protégé Program. As described in DTAR...

  8. 31 CFR 306.117 - Withdrawal of eligible book-entry Treasury securities for conversion to registered form.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Withdrawal of eligible book-entry Treasury securities for conversion to registered form. 306.117 Section 306.117 Money and Finance: Treasury... PUBLIC DEBT GENERAL REGULATIONS GOVERNING U.S. SECURITIES Book-Entry Procedure § 306.117 Withdrawal...

  9. 31 CFR 2.2 - Access to classified information by historical researchers, former Treasury Presidential and Vice...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... and Vice Presidents. 2.2 Section 2.2 Money and Finance: Treasury Office of the Secretary of the Treasury NATIONAL SECURITY INFORMATION § 2.2 Access to classified information by historical researchers... research projects; (2) Previously occupied a position in the Treasury to which they were appointed by the...

  10. 31 CFR 353.3 - Converting definitive savings bonds to book-entry bonds in New Treasury Direct.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... book-entry bonds in New Treasury Direct. 353.3 Section 353.3 Money and Finance: Treasury Regulations... § 353.3 Converting definitive savings bonds to book-entry bonds in New Treasury Direct. Series EE savings bonds that were originally issued as definitive bonds may be converted to book-entry bonds through...

  11. 31 CFR 306.117 - Withdrawal of eligible book-entry Treasury securities for conversion to registered form.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Withdrawal of eligible book-entry... PUBLIC DEBT GENERAL REGULATIONS GOVERNING U.S. SECURITIES Book-Entry Procedure § 306.117 Withdrawal of eligible book-entry Treasury securities for conversion to registered form. (a) Eligible book-entry Treasury...

  12. 31 CFR 306.117 - Withdrawal of eligible book-entry Treasury securities for conversion to registered form.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Withdrawal of eligible book-entry... PUBLIC DEBT GENERAL REGULATIONS GOVERNING U.S. SECURITIES Book-Entry Procedure § 306.117 Withdrawal of eligible book-entry Treasury securities for conversion to registered form. (a) Eligible book-entry Treasury...

  13. Biennial Survey of Education in the United States, 1934-1936. Bulletin, 1937, No. 2. Volume I. Chapter VI: Effects of the Depression upon Public Elementary and Secondary Schools and upon Colleges and Universities

    ERIC Educational Resources Information Center

    Deffenbaugh, W. S.

    1938-01-01

    During the period when the economic depression was most serious having the effect upon schools, the Office of Education presented relevant data in a number of different publications. This chapter of the Biennial Survey of Education reviews the most significant findings in those publications and draws them together as a permanent report of some of…

  14. Phase VI Glove Durability Testing

    NASA Technical Reports Server (NTRS)

    Mitchell, Kathryn

    2011-01-01

    The current state-of-the-art space suit gloves, the Phase VI gloves, have an operational life of 25 -- 8 hour Extravehicular Activities (EVAs) in a dust free, manufactured microgravity EVA environment. Future planetary outpost missions create the need for space suit gloves which can endure up to 90 -- 8 hour traditional EVAs or 576 -- 45 minute suit port-based EVAs in a dirty, uncontrolled planetary environment. Prior to developing improved space suit gloves for use in planetary environments, it is necessary to understand how the current state-of-the-art performs in these environments. The Phase VI glove operational life has traditionally been certified through cycle testing consisting of International Space Station (ISS)-based EVA tasks in a clean environment, and glove durability while performing planetary EVA tasks in a dirty environment has not previously been characterized. Testing was performed in the spring of 2010 by the NASA Johnson Space Center (JSC) Crew and Thermal Systems Division (CTSD) to characterize the durability of the Phase VI Glove and identify areas of the glove design which need improvement to meet the requirements of future NASA missions. Lunar simulant was used in this test to help replicate the dirty lunar environment, and generic planetary surface EVA tasks were performed during testing. A total of 50 manned, pressurized test sessions were completed in the Extravehicular Mobility Unit (EMU) using one pair of Phase VI gloves as the test article. The 50 test sessions were designed to mimic the total amount of pressurized cycling the gloves would experience over a 6 month planetary outpost mission. The gloves were inspected periodically throughout testing, to assess their condition at various stages in the test and to monitor the gloves for failures. Additionally, motion capture and force data were collected during 18 of the 50 test sessions to assess the accuracy of the cycle model predictions used in testing and to feed into the

  15. Phase VI Glove Durability Testing

    NASA Technical Reports Server (NTRS)

    Mitchell, Kathryn C.

    2010-01-01

    The current state-of-the-art space suit gloves, the Phase VI gloves, have an operational life of 25 - 8 hour Extravehicular Activities (EVAs) in a clean, controlled ISS environment. Future planetary outpost missions create the need for space suit gloves which can endure up to 90 - 8 hour traditional EVAs or 576 - 45 minute suit port-based EVAs in a dirty, uncontrolled planetary environment. Prior to developing improved space suit gloves for use in planetary environments, it is necessary to understand how the current state-of-the-art performs in these environments. The Phase VI glove operational life has traditionally been certified through cycle testing consisting of ISS-based tasks in a clean environment, and glove durability while performing planetary EVA tasks in a dirty environment has not previously been characterized. Testing was performed in the spring of 2010 by the NASA Johnson Space Center Crew and Thermal Systems Division to characterize the durability of the Phase VI Glove and identify areas of the glove design which need improvement to meet the requirements of future NASA missions. Lunar simulant was used in this test to help replicate the dirty lunar environment, and generic planetary surface EVA tasks were performed during testing. A total of 50 manned, pressurized test sessions were completed in the Extravehicular Mobility Unit (EMU) using one pair of Phase VI gloves as the test article. The 50 test sessions were designed to mimic the total amount of pressurized cycling the gloves would experience over a 6 month planetary outpost mission. The gloves were inspected at periodic intervals throughout testing, to assess their condition at various stages in the test and to monitor the gloves for failures. Additionally, motion capture and force data were collected during 18 of the 50 test sessions to assess the accuracy of the cycle model predictions used in testing and to feed into the development of improved cycle model tables. This paper provides a

  16. Shotcrete for underground support VI

    SciTech Connect

    Not Available

    1993-01-01

    This proceedings consists of papers presented at the Shotcrete for Underground Support VI Conference held in Niagara-on-the-Lake, Ontario, Canada, May 2-6, 1993. It covers three broad themes concerning shotcrete - engineering, research, and applications. Specifically, the proceedings presents papers on: (1) materials engineering; (2) shotcrete research; (3) engineering design; and (4) tunneling, soil nailing, and mining applications. The book concludes by presenting an international compilation of guidelines and recommendations on shotcrete. Papers have been processed separately for inclusion on the data base.

  17. Chromium(VI) release from leather and metals can be detected with a diphenylcarbazide spot test.

    PubMed

    Bregnbak, David; Johansen, Jeanne D; Jellesen, Morten S; Zachariae, Claus; Thyssen, Jacob P

    2015-11-01

    Along with chromium, nickel and cobalt are the clinically most important metal allergens. However, unlike for nickel and cobalt, there is no validated colorimetric spot test that detects chromium. Such a test could help both clinicians and their patients with chromium dermatitis to identify culprit exposures. To evaluate the use of diphenylcarbazide (DPC) as a spot test reagent for the identification of chromium(VI) release. A colorimetric chromium(VI) spot test based on DPC was prepared and used on different items from small market surveys. The DPC spot test was able to identify chromium(VI) release at 0.5 ppm without interference from other pure metals, alloys, or leather. A market survey using the test showed no chromium(VI) release from work tools (0/100). However, chromium(VI) release from metal screws (7/60), one earring (1/50), leather shoes (4/100) and leather gloves (6/11) was observed. We found no false-positive test reactions. Confirmatory testing was performed with X-ray fluorescence (XRF) and spectrophotometrically on extraction fluids. The use of DPC as a colorimetric spot test reagent appears to be a good and valid test method for detecting the release of chromium(VI) ions from leather and metal articles. The spot test has the potential to become a valuable screening tool. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  18. Stable suspension for Vi-agglutination tests

    PubMed Central

    Ando, Koji; Shimojo, Hiroto

    1953-01-01

    Two methods of preparing a stable suspension for Vi-agglutination tests are discussed. Both maintain Vi-agglutinability and O-inagglutinability after storage at 37°C for 6 months, and the second also maintains the Vi-capsule-staining property. The first method involves the addition of 0.5% CaCl2 to a heavy saline Vi-suspension, while in the second a similar suspension is treated with an 0.2% solution of chrome alum. PMID:20603972

  19. Immune suppression induced by Vi capsular polysaccharide is overcome by Vi-DT conjugate vaccine.

    PubMed

    An, So Jung; Yoon, Yeon Kyung; Kothari, Sudeep; Kim, Deok Ryun; Kim, Jeong Ah; Kothari, Neha; Lee, Eugene; Park, Tai Hyun; Carbis, Rodney

    2012-02-01

    The influence pre-exposure of mice to Vi capsular polysaccharide, purified from Salmonella enterica Serovar Typhi, on the subsequent immune response induced by a Vi-diphtheria toxoid (Vi-DT) conjugate was evaluated. Vi induced low anti Vi IgG titers with the dominant subclass being IgG3. The Vi-DT conjugate induced high titers of anti Vi IgG with the dominant subclass being IgG1 but with considerable quantities of IgG2a, IgG2b and IgG3. Priming of mice with Vi suppressed the response to a subsequent dose of conjugate and the suppression was overcome by a second dose of conjugate. Priming with conjugate prevented suppression of the anti Vi response and subsequent dosing with Vi raised titers back to previous levels but did not boost to new higher levels. The anti DT IgG response to one dose of conjugate was relatively strong and protracted and continued to rise for 12 weeks, compared to the response to one dose of DT which was poor and peaked at two weeks. The prolonged anti DT response was most likely due to the slow release of DT from the conjugate lattice as it degrades within the mouse resulting in a continuous stimulation of the immune response. The presence of increasing amounts of un-conjugated Vi, up to 50%, administered with the conjugate resulted in increasingly higher levels of both anti Vi and anti DT. Larger amounts of un-conjugated Vi inhibited the anti Vi response. These findings have implications for vaccine quality and a limit for un-conjugated polysaccharide should not exceed 50% and from a vaccine program perspective if the results presented here translate to humans then a Vi conjugate, once it becomes available, should replace Vi polysaccharide vaccines. Copyright © 2011 Elsevier Ltd. All rights reserved.

  20. Neptunium(vi) chain and neptunium(vi/v) mixed valence cluster complexes.

    PubMed

    Cornet, Stéphanie M; Häller, L Jonas L; Sarsfield, Mark J; Collison, David; Helliwell, Madeleine; May, Iain; Kaltsoyannis, Nikolas

    2009-02-28

    The synthesis of [Np(VI)O(2)Cl(2)(thf)](n) offers the potential for more detailed exploration of neptunyl(vi) chemistry, while the synthesis of the mixed valence cluster complex [{Np(VI)O(2)Cl(2)}{Np(V)O(2)Cl(thf)(3)}(2)] allows molecular neptunyl(v) 'cation-cation' interactions to be probed.

  1. THE HUBBLE SPACE TELESCOPE TREASURY PROGRAM ON THE ORION NEBULA CLUSTER {sup ,}

    SciTech Connect

    Robberto, M.; Soderblom, D. R.; Bergeron, E.; Kozhurina-Platais, V.; Makidon, R. B.; McCullough, P. R.; McMaster, M.; Panagia, N.; Reid, I. N.; Levay, Z.; Frattare, L.; Da Rio, N.; Andersen, M.; O'Dell, C. R.; Stassun, K. G.; Simon, M.; Feigelson, E. D.; Stauffer, J. R.; Meyer, M.; Reggiani, M.; and others

    2013-07-01

    The Hubble Space Telescope (HST) Treasury Program on the Orion Nebula Cluster (ONC) has used 104 orbits of HST time to image the Great Orion Nebula region with the Advanced Camera for Surveys (ACS), the Wide-Field/Planetary Camera 2 (WFPC2), and the Near-Infrared Camera and Multi-Object Spectrograph (NICMOS) instrument in 11 filters ranging from the U band to the H band equivalent of HST. The program has been intended to perform the definitive study of the stellar component of the ONC at visible wavelengths, addressing key questions like the cluster initial mass function, age spread, mass accretion, binarity, and cirumstellar disk evolution. The scanning pattern allowed us to cover a contiguous field of approximately 600 arcmin{sup 2} with both ACS and WFPC2, with a typical exposure time of approximately 11 minutes per ACS filter, corresponding to a point source depth AB(F435W) = 25.8 and AB(F775W) = 25.2 with 0.2 mag of photometric error. We describe the observations, data reduction, and data products, including images, source catalogs, and tools for quick look preview. In particular, we provide ACS photometry for 3399 stars, most of them detected at multiple epochs; WFPC2 photometry for 1643 stars, 1021 of them detected in the U band; and NICMOS JH photometry for 2116 stars. We summarize the early science results that have been presented in a number of papers. The final set of images and the photometric catalogs are publicly available through the archive as High Level Science Products at the STScI Multimission Archive hosted by the Space Telescope Science Institute.

  2. FUSE Observations of O VI Absorption in the Local Interstellar Medium

    NASA Technical Reports Server (NTRS)

    Oegerle, W. R.; Jenkins, E. B.; Shelton, R. L.; Bowen, D. V.; Fisher, Richard R. (Technical Monitor)

    2000-01-01

    We report the results of an initial Far Ultraviolet Spectroscopic Explorer (FUSE) survey of O VI Lambda 1032 absorption along the lines of sight to eleven nearby white dwarfs, ten of which are within the Local Bubble (LB; d < or approximately equal 100 pc). A goal of this survey is to investigate the possible formation of O VI in the conductive interfaces between cool (about 10(exp 4) K) clouds immersed in the presumably hot (10(exp 6) K) gas within the LB. This mechanism is often invoked to explain the widespread presence of 0 VI throughout the Galactic disk. We find no 0 VI absorption toward two stars, and the column densities along three additional sight lines are quite low; N(O VI) about 5 x 10(exp 13)/sq cm. In several directions, we observe rather broad, shallow absorption with N(O VI) about 1 - 2 x 10(exp 13)/sq cm. Models of conductive interfaces predict narrow profiles with N(OVI) > or about equal to 10(exp 13)/sq cm per interface, in the absence of a significant transverse magnetic field. Hence, our observations of weak 0 VI absorption indicate that conduction is being quenched, possibly by non-radial magnetic fields. Alternatively, the gas within the LB may not be hot. Breitschwerdt & Schmutzler have proposed a model for the LB in which an explosive event within a dense cloud created rapid expansion and adiabatic cooling, resulting in a cavity containing gas with a kinetic temperature of T about 50,000 K, but with an ionization state characteristic of much hotter gas. This model has a number of attractive features, but appears to predict significantly more O VI than we observe.

  3. FUSE Observations of O VI Absorption in the Local Interstellar Medium

    NASA Technical Reports Server (NTRS)

    Oegerle, W. R.; Jenkins, E. B.; Shelton, R. L.; Bowen, D. V.; Fisher, Richard R. (Technical Monitor)

    2000-01-01

    We report the results of an initial Far Ultraviolet Spectroscopic Explorer (FUSE) survey of O VI Lambda 1032 absorption along the lines of sight to eleven nearby white dwarfs, ten of which are within the Local Bubble (LB; d < or approximately equal 100 pc). A goal of this survey is to investigate the possible formation of O VI in the conductive interfaces between cool (about 10(exp 4) K) clouds immersed in the presumably hot (10(exp 6) K) gas within the LB. This mechanism is often invoked to explain the widespread presence of 0 VI throughout the Galactic disk. We find no 0 VI absorption toward two stars, and the column densities along three additional sight lines are quite low; N(O VI) about 5 x 10(exp 13)/sq cm. In several directions, we observe rather broad, shallow absorption with N(O VI) about 1 - 2 x 10(exp 13)/sq cm. Models of conductive interfaces predict narrow profiles with N(OVI) > or about equal to 10(exp 13)/sq cm per interface, in the absence of a significant transverse magnetic field. Hence, our observations of weak 0 VI absorption indicate that conduction is being quenched, possibly by non-radial magnetic fields. Alternatively, the gas within the LB may not be hot. Breitschwerdt & Schmutzler have proposed a model for the LB in which an explosive event within a dense cloud created rapid expansion and adiabatic cooling, resulting in a cavity containing gas with a kinetic temperature of T about 50,000 K, but with an ionization state characteristic of much hotter gas. This model has a number of attractive features, but appears to predict significantly more O VI than we observe.

  4. Chromium(VI) generation in vadose zone soils and alluvial sediments of the southwestern Sacramento Valley, California: a potential source of geogenic Cr(VI) to groundwater

    USGS Publications Warehouse

    Mills, Christopher T.; Morrison, Jean M.; Goldhaber, Martin B.; Ellefsen, Karl J.

    2011-01-01

    Concentrations of geogenic Cr(VI) in groundwater that exceed the World Health Organization’s maximum contaminant level for drinking water (50 μg L−1) occur in several locations globally. The major mechanism for mobilization of this Cr(VI) at these sites is the weathering of Cr(III) from ultramafic rocks and its subsequent oxidation on Mn oxides. This process may be occurring in the southern Sacramento Valley of California where Cr(VI) concentrations in groundwater can approach or exceed 50 μg L−1. To characterize Cr geochemistry in the area, samples from several soil auger cores (approximately 4 m deep) and drill cores (approximately 25 m deep) were analyzed for total concentrations of 44 major, minor and trace elements, Cr associated with labile Mn and Fe oxides, and Cr(VI). Total concentrations of Cr in these samples ranged from 140 to 2220 mg per kg soil. Between 9 and 70 mg per kg soil was released by selective extractions that target Fe oxides, but essentially no Cr was associated with the abundant reactive Mn oxides (up to ~1000 mg hydroxylamine-reducible Mn per kg soil was present). Both borehole magnetic susceptibility surveys performed at some of the drill core sites and relative differences between Cr released in a 4-acid digestion versus total Cr (lithium metaborate fusion digestion) suggest that the majority of total Cr in the samples is present in refractory chromite minerals transported from ultramafic exposures in the Coast Range Mountains. Chromium(VI) in the samples studied ranged from 0 to 42 μg kg−1, representing a minute fraction of total Cr. Chromium(VI) content was typically below detection in surface soils (top 10 cm) where soil organic matter was high, and increased with increasing depth in the soil auger cores as organic matter decreased. Maximum concentrations of Cr(VI) were up to 3 times greater in the deeper drill core samples than the shallow auger cores. Although Cr(VI) in these vadose zone soils and sediments was only a

  5. 29 CFR 1910.1026 - Chromium (VI).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... by employees in the immediate release area, or by maintenance personnel, it is not an emergency. Employee exposure means the exposure to airborne chromium (VI) that would occur if the employee were not... employee exposure to chromium (VI) associated with a particular product or material or a specific process...

  6. [Occupational exposure to chromium(VI) compounds].

    PubMed

    Skowroń, Jolanta; Konieczko, Katarzyna

    2015-01-01

    This article discusses the effect of chromium(VI) (Cr(VI)) on human health under conditions of acute and chronic exposure in the workplace. Chromium(VI) compounds as carcinogens and/or mutagens pose a direct danger to people exposed to them. If carcinogens cannot be eliminated from the work and living environments, their exposure should be reduced to a minimum. In the European Union the proposed binding occupational exposure limit value (BOELV) for chromium(VI) of 0.025 mg/m³ is still associated with high cancer risk. Based on the Scientific Commitee of Occupational Exposure Limits (SCOEL) document chromium(VI) concentrations at 0.025 mg/m³ increases the risk of lung cancer in 2-14 cases per 1000 exposed workers. Exposure to chromium(VI) compounds expressed in Cr(VI) of 0.01 mg Cr(VI)/m3; is responsible for the increased number of lung cancer cases in 1-6 per 1000 people employed in this condition for the whole period of professional activity.

  7. The Radiolysis of AmVI Solutions

    SciTech Connect

    Bruce J. Mincher

    2013-06-01

    The reduction of bismuthate-produced AmVI by 60Co gamma-rays was measured using post-irradiation UV/Vis spectroscopy. The reduction of AmVI by radiolysis was rapid, producing AmV as the sole product. Relatively low absorbed doses in the ~0.3 kGy range quantitatively reduced a solution of 2.5 x 10-4 M AmVI. The addition of bismuthate to samples during irradiation did not appear to protect AmVI from radiolytic reduction during these experiments. It was also shown here that AmV is very stable toward radiation. The quantitative reduction of the AmVI concentration here corresponds to 1.4 hours of exposure to a process solution, however the actual americium concentrations will be higher and the expected contact times short when using centrifugal contactors. Thus, the reduction rate found in these initial experiments may not be excessive.

  8. Intelsat VI - A continuing evolution

    NASA Astrophysics Data System (ADS)

    Bennett, S. B.; Braverman, D. J.

    1984-11-01

    Design, launch, and performance features of the Intelsat VI satellite scheduled for 1986 launch are described. The spacecraft will operated with SS/TDMA techniques and six antenna beams, weigh 23 kg at the beginning of life, carry 80,000 half-circuits, and will be borne aloft by either the STS or Ariane 4. The communications equipment will include Cand K-band receivers, 14/11 GHz upconverters, traveling wave tube amplifiers, and 50 input and output filters. Total interconnectivity will be present for all uplinks and downlinks, which will issue spot and shaped beam coverage of the hemisphere. Satellite power is to be supplied by solar panels furnishing 2 kW continuously and eclipse power is to be drawn from two 44 Ah NiH batteries. Orbit maintenance and attitude control are assigned to six 22 N thrusters.

  9. The new geographic information system in ETVA VI.PE.

    NASA Astrophysics Data System (ADS)

    Xagoraris, Zafiris; Soulis, George

    2016-08-01

    ETVA VI.PE. S.A. is a member of the Piraeus Bank Group of Companies and its activities include designing, developing, exploiting and managing Industrial Areas throughout Greece. Inside ETVA VI.PE.'s thirty-one Industrial Parks there are currently 2,500 manufacturing companies established, with 40,000 employees and € 2.5 billion of invested funds. In each one of the industrial areas ETVA VI.PE guarantees the companies industrial lots of land (sites) with propitious building codes and complete infrastructure networks of water supply, sewerage, paved roads, power supply, communications, cleansing services, etc. The development of Geographical Information System for ETVA VI.PE.'s Industrial Parks started at the beginning of 1992 and consists of three subsystems: Cadastre, that manages the information for the land acquisition of Industrial Areas; Street Layout - Sites, that manages the sites sold to manufacturing companies; Networks, that manages the infrastructure networks (roads, water supply, sewerage etc). The mapping of each Industrial Park is made incorporating state-of-the-art photogrammetric, cartographic and surveying methods and techniques. Passing through the phases of initial design (hybrid GIS) and system upgrade (integrated Gis solution with spatial database), the system is currently operating on a new upgrade (integrated gIS solution with spatial database) that includes redesigning and merging the system's database schemas, along with the creation of central security policies, and the development of a new web GIS application for advanced data entry, highly customisable and standard reports, and dynamic interactive maps. The new GIS bring the company to advanced levels of productivity and introduce the new era for decision making and business management.

  10. Immunohistochemical localization of collagen VI in arthrofibrosis.

    PubMed

    Zeichen, J; van Griensven, M; Albers, I; Lobenhoffer, P; Bosch, U

    1999-01-01

    Arthrofibrosis is a disabling complication after knee trauma and surgery. Clinically, it is characterized by pain and joint stiffness due to massive connective tissue proliferation. In similar pathological conditions with fibrotic transformation such as lung fibrosis or superficial fibromatoses, an increased expression of collagen type VI has been reported. Collagen VI, which forms a filamentous network, is thought to serve as an anchoring element between collagen I/III fibrils and basement membranes and as a cell binding structure. Collagen VI may also play a contributing role in the pathogenesis of arthrofibrosis. The aim of the present study was therefore to demonstrate the localization and distribution of type VI collagen in arthrofibrotic tissue. Tissue samples from the infrapatellar fat pad and intercondylar synovia of 13 patients suffering from arthrofibrosis were taken at surgery. The expression of type VI collagen was studied immunohistochemically using an immunoperoxidase method for light microscopic visualization. Histologic analysis showed a synovial hyperplasia with inflammatory cell infiltration and vascular proliferation. Compared with normal synovial tissue, type VI collagen was widely distributed as a network subsynovially and around the capillary walls. The results of the present study suggest that dysregulation of collagen VI synthesis could be an important contributing factor in the complex mechanisms of disordered matrix protein deposition leading to arthrofibrosis.

  11. Emissions of chromium (VI) from arc welding.

    PubMed

    Heung, William; Yun, Myoung-Jin; Chang, Daniel P Y; Green, Peter G; Halm, Chris

    2007-02-01

    The presence of Cr in the +6 oxidation state (Cr[VI]) is still observed in ambient air samples in California despite steps taken to reduce emissions from plating operations. One known source of emission of Cr(VI) is welding, especially with high Cr-content materials, such as stainless steels. An experimental effort was undertaken to expand and update Cr(VI) emission factors by conducting tests on four types of arc-welding operations: gas-metal arc welding (GMAW), shielded metal arc welding (SMAW), fluxcore arc welding, and pulsed GMAW. Standard American Welding Society hood results were compared with a total enclosure method that permitted isokinetic sampling for particle size-cut measurement, as well as total collection of the aerosol. The fraction of Cr(VI) emitted per unit mass of Cr electrode consumed was determined. Consistent with AP-42 data, initial results indicate that a significant fraction of the total Cr in the aerosol is in the +6 oxidation state. The fraction of Cr(VI) and total aerosol mass produced by the different arc welding methods varies with the type of welding process used. Self-shielded electrodes that do not use a shield gas, for example, SMAW, produce greater amounts of Cr(VI) per unit mass of electrode consumed. The formation of Cr(VI) from standard electrode wires used for welding mild steel was below the method detection limit after eliminating an artifact in the analytical method used.

  12. Anaerobic bio-removal of uranium (VI) and chromium (VI): comparison of microbial community structure.

    PubMed

    Martins, Mónica; Faleiro, Maria Leonor; Chaves, Sandra; Tenreiro, Rogério; Santos, Erika; Costa, Maria Clara

    2010-04-15

    Several microbial communities, obtained from uranium contaminated and non-contaminated samples, were investigated for their ability to remove uranium (VI) and the cultures capable for this removal were further assessed on their efficiency for chromium (VI) removal. The highest efficiency for removal of both metals was observed on a consortium from a non-contaminated soil collected in Monchique thermal place, which was capable to remove 91% of 22 mg L(-1) U(VI) and 99% of 13 mg L(-1) Cr(VI). This study revealed that uranium (VI) removing communities have also ability to remove chromium (VI), but when uranium (VI) was replaced by chromium (VI) several differences in the structure of all bacterial communities were observed. TGGE and phylogenetic analysis of 16S rRNA gene showed that the uranium (VI) removing bacterial consortia are mainly composed by members of Rhodocyclaceae family and Clostridium genus. On the other hand, bacteria from Enterobacteriaceae family were detected in the community with ability for chromium (VI) removal. The existence of members of Enterobacteriaceae and Rhodocyclaceae families never reported as chromium or uranium removing bacteria, respectively, is also a relevant finding, encouraging the exploitation of microorganisms with new abilities that can be useful for bioremediation.

  13. The Grism Lens-Amplified Survey from Space (GLASS). VI. Comparing the Mass and Light in MACS J0416.1-2403 Using Frontier Field Imaging and GLASS Spectroscopy

    NASA Astrophysics Data System (ADS)

    Hoag, A.; Huang, K.-H.; Treu, T.; Bradač, M.; Schmidt, K. B.; Wang, X.; Brammer, G. B.; Broussard, A.; Amorin, R.; Castellano, M.; Fontana, A.; Merlin, E.; Schrabback, T.; Trenti, M.; Vulcani, B.

    2016-11-01

    We present a model using both strong and weak gravitational lensing of the galaxy cluster MACS J0416.1-2403, constrained using spectroscopy from the Grism Lens-Amplified Survey from Space (GLASS) and Hubble Frontier Fields (HFF) imaging data. We search for emission lines in known multiply imaged sources in the GLASS spectra, obtaining secure spectroscopic redshifts of 30 multiple images belonging to 15 distinct source galaxies. The GLASS spectra provide the first spectroscopic measurements for five of the source galaxies. The weak lensing signal is acquired from 884 galaxies in the F606W HFF image. By combining the weak lensing constraints with 15 multiple image systems with spectroscopic redshifts and nine multiple image systems with photometric redshifts, we reconstruct the gravitational potential of the cluster on an adaptive grid. The resulting map of total mass density is compared with a map of stellar mass density obtained from the deep Spitzer Frontier Fields imaging data to study the relative distribution of stellar and total mass in the cluster. We find that the projected stellar mass to total mass ratio, f ⋆, varies considerably with the stellar surface mass density. The mean projected stellar mass to total mass ratio is < {f}\\star > =0.009+/- 0.003 (stat.), but with a systematic error as large as 0.004-0.005, dominated by the choice of the initial mass function. We find agreement with several recent measurements of f ⋆ in massive cluster environments. The lensing maps of convergence, shear, and magnification are made available to the broader community in the standard HFF format.

  14. 31 CFR 128.23 - Special survey reports.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Special survey reports. 128.23... § 128.23 Special survey reports. The Secretary may prescribe special survey reports with respect to.... Notice of special survey reports will be published in accordance with § 128.1(c)....

  15. 31 CFR 128.13 - Special survey reports.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Special survey reports. 128.13... Transactions and Positions § 128.13 Special survey reports. The Secretary may prescribe special survey reports... respect to such data. Notice of special survey reports will be published in accordance with § 128.1(c)....

  16. Extended Analysis of Mo VI

    NASA Astrophysics Data System (ADS)

    Edlén, B.; Rahimullah, K.; Tauheed, A.; Chaghtai, M. S. Z.

    1985-09-01

    The analysis of the RbI-like spectrum Mo VI has been extended to include a total of some 110 classified lines and 44 energy levels belonging to the one-electron configurations 4s24p6(1S) nl with n ranging up to 9 and l up to 7. The analysis is based on recordings of vacuum spark spectra made at Lund in the region 230-2350 Å, complemented by a list of lines from 2193 to 6336 Å observed and identified by Romanov and Striganov in a Penning type arc discharge. The one-electron level system is partly mixed with core-excited configurations, not treated in the present paper. Especially the nf series is strongly perturbed by 4s24p54d2, and an anomalous behaviour of the ng series is explained by interaction with the 2G term of 4s4p64d2. The ionization limit, derived from 6h, 7i and 8k by means of the polarization formula, is found to be 555 132 ± 2 cm-1.

  17. II-VI widegap superlattices

    NASA Astrophysics Data System (ADS)

    Taguchi, T.; Yamada, Y.; Endoh, Y.; Nozue, Y.; Mullins, J. T.; Ohno, T.; Masumoto, Y.; Takeda, S.

    We review our recent results of the excitonic properties in ZnSeZnS and Cd xZn 1-xSZnS strained-layer superlattices (SLSs). The most important physical insights in the II-VI widegap superlattices are to understand the relationship between the optical properties of quasi-two-dimensional exciton and strain because the well layer frequently receives biaxial compression or tension. The strain thus causes the significant shifts of the bandgap and splitting of the valence band. Semi-quantative calculations lead to an expectation that ZnSeZnS SLS always exhibits a type I band lineup within 100 Å thicknesses of the ZnSe well at a constant ZnS barrier width of several tens angstrom. This is in good agreement with the experimental results of exciton absorption and its luminescence excitation spectra. The Cd 0.3Zn 0.7SZnS SLSs with a range of well widths can produce intense excitonic emissions around 3.4 eV at room temperature due to the quantum confinement of excitons in the ternary CdZnS well. In order to elucidate localisation and relaxation processes of excitons, we have for the first time reported a multiple-LO-phonon emission process in the excitation spectra. The electric-field studies suggest that the concomitant decrease in intensity and the energy downshift of the exciton line may originate from the quantum confined Stark effect.

  18. 31 CFR 223.22 - Fees for services of the Treasury Department.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... running to the United States) of surety companies doing business with the United States (see § 223.12(a... fee will be collected from every company requesting a particular category of service, e.g... (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE SURETY COMPANIES...

  19. 77 FR 33634 - U.S. Treasury Securities-State and Local Government Series

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-07

    ... available for purchase by issuers of tax-exempt securities. Current financial market conditions have... Commissioner for Public Debt Accounting, Bureau of the Public Debt, at (304) 480-5101 or opda-sib@bpd.treas.gov... administrative costs. As Treasury's costs of administering the SLGS program have decreased so has the amount...

  20. 31 CFR 375.30 - Does the Treasury have any discretion in this process?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT MARKETABLE... redemption operation announcement; (3) Add to, change, or waive any provision of this part; or (4) Change the... provide a public notice if we change any redemption operation provision, term or condition....

  1. 31 CFR 309.9 - Tenders; acceptance by the Secretary of the Treasury.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT ISSUE AND SALE OF... acceptable prices offered and will make public announcement thereof those submitting tenders will be advised..., as specified in the public notice, all tenders received by the Federal Reserve Banks and Branches...

  2. 12 CFR 987.9 - Reference to certain Department of Treasury commentary and determinations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 7 2010-01-01 2010-01-01 false Reference to certain Department of Treasury commentary and determinations. 987.9 Section 987.9 Banks and Banking FEDERAL HOUSING FINANCE BOARD OFFICE OF FINANCE BOOK-ENTRY PROCEDURE FOR CONSOLIDATED OBLIGATIONS § 987.9 Reference to certain Department of...

  3. 78 FR 31629 - Treasury Order Establishing the Bureau of the Fiscal Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-24

    ... the Public Debt and the Financial Management Service as the Bureau of the Fiscal Service. The Order... the Commissioner of the Public Debt and the Commissioner, Financial Management Service. The Order also... Public Debt and the Financial Management Service on or before October 7, 2012. Treasury Order 136-01...

  4. 77 FR 72278 - Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-05

    ... Fiscal Service 31 CFR Part 356 Sale and Issue of Marketable Book-Entry Treasury Bills, Notes, and Bonds... for the initial auction size to be larger than reopening offering amounts. Book-Entry Form and Systems: The floating rate securities would be offered only in book-entry form. They would be issued...

  5. 31 CFR 357.20 - Securities account in Legacy Treasury Direct ®.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) An account master record, and (2) A securities portfolio. (b) Security. A security in Legacy Treasury... securities portfolio associated with an account master record. (c) Account master record. In order for a... § 357.26.) (d) Securities portfolio. The securities portfolio contains a description of each security...

  6. 31 CFR 205.7 - Can a Treasury-State agreement be amended?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Treasury-State agreement at any time if both we and the State agree in writing. (b) The effective date of... clarify its language when the terms of the existing agreement are either no longer correct or no longer applicable. A State must notify us in writing within 30 days of the time the State becomes aware of a change...

  7. 45 CFR 303.71 - Requests for full collection services by the Secretary of the Treasury.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... State's own collection mechanisms or mechanisms that are comparable; (ii) A description of the actions... full collection services by the Secretary of the Treasury. (a) Definition. State collection mechanisms... action within the State. (b) Families eligible. Subject to the criteria and procedures in this...

  8. 75 FR 95 - Endorsement and Payment of Checks Drawn on the United States Treasury

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-04

    ... Department of the Treasury, Financial Management Service (FMS), is proposing to amend its regulation...), Financial Management Service (FMS),\\1\\ is proposing revisions to its regulation, 31 CFR part 240 (Part 240... regulation related to automating reclamations should have a minimal economic impact on small financial...

  9. 31 CFR 205.9 - What is included in a Treasury-State agreement?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... basis for determining the funding thresholds for major Federal assistance programs, unless otherwise... in a Treasury-State agreement. The supporting documentation must be retained by the State for three... retained by the State for three years. (g) Methods used by the State and Federal agencies to calculate...

  10. [Treasury Law Enforcement School. Course 14. "Evidence." Student Guide, Text, and Handout.

    ERIC Educational Resources Information Center

    Department of the Treasury, Washington, DC. Consolidated Law Enforcement Training Center.

    This packet of three booklets, which includes a student guide, textbook, and handbook, is illustrative of other booklets available from the Treasury Law Enforcement School designed for training law enforcement officers in Federal law. The material in this course, related primarily to criminal cases, focuses on presenting evidence to the court to…

  11. 28 CFR 71.45 - Deposit in Treasury of the United States.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Deposit in Treasury of the United States. 71.45 Section 71.45 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) IMPLEMENTATION OF THE PROVISIONS OF THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 Implementation for Actions Initiated by...

  12. 41 CFR 105-70.045 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 41 Public Contracts and Property Management 3 2012-01-01 2012-01-01 false Deposit in Treasury of United States. 105-70.045 Section 105-70.045 Public Contracts and Property Management Federal Property... Administration 70-IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 105-70.045 Deposit in...

  13. 20 CFR 355.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 1 2011-04-01 2011-04-01 false Deposit in Treasury of United States. 355.45 Section 355.45 Employees' Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS REGULATIONS UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 355.45 Deposit...

  14. 20 CFR 355.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 1 2013-04-01 2012-04-01 true Deposit in Treasury of United States. 355.45 Section 355.45 Employees' Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS REGULATIONS UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 355.45 Deposit...

  15. 7 CFR 1.344 - Deposit to Treasury of the United States.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 1 2013-01-01 2013-01-01 false Deposit to Treasury of the United States. 1.344 Section 1.344 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Procedures Related to Administrative Hearings Under the Program Fraud Civil Remedies Act of 1986 § 1.344 Deposit...

  16. 20 CFR 355.45 - Deposit in Treasury of United States.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 1 2012-04-01 2012-04-01 false Deposit in Treasury of United States. 355.45 Section 355.45 Employees' Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS REGULATIONS UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 355.45 Deposit...

  17. 77 FR 10714 - Department of the Treasury Acquisition Regulation; Internet Payment Platform

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... 48 CFR Chapter 10 RIN 1505-AC41 Department of the Treasury Acquisition Regulation; Internet Payment... Regulation (DTAR) to implement use of the Internet Payment Platform, a centralized electronic invoicing and... implement the Internet Payment Platform (IPP) no later than the end of fiscal year 2012; with all...

  18. 31 CFR 356.5 - What types of securities does the Treasury auction?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... years. (2) Treasury inflation-protected notes. (i) Are issued with a stated rate of interest to be applied to the inflation-adjusted principal on each interest payment date; (ii) Have interest payable... with a stated rate of interest to be applied to the par amount; (ii) Have interest payable semiannually...

  19. 31 CFR 356.5 - What types of securities does the Treasury auction?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... years. (2) Treasury inflation-protected notes. (i) Are issued with a stated rate of interest to be applied to the inflation-adjusted principal on each interest payment date; (ii) Have interest payable... with a stated rate of interest to be applied to the par amount; (ii) Have interest payable semiannually...

  20. 31 CFR 356.5 - What types of securities does the Treasury auction?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... years. (2) Treasury inflation-protected notes. (i) Are issued with a stated rate of interest to be... bonds. (i) Are issued with a stated rate of interest to be applied to the inflation-adjusted principal... distinguish such notes and bonds from “inflation-protected securities” and “floating rate notes.” We refer to...

  1. 31 CFR 356.5 - What types of securities does the Treasury auction?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... years. (2) Treasury inflation-protected notes. (i) Are issued with a stated rate of interest to be applied to the inflation-adjusted principal on each interest payment date; (ii) Have interest payable... with a stated rate of interest to be applied to the par amount; (ii) Have interest payable semiannually...

  2. 31 CFR 356.5 - What types of securities does the Treasury auction?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... years. (2) Treasury inflation-protected notes. (i) Are issued with a stated rate of interest to be applied to the inflation-adjusted principal on each interest payment date; (ii) Have interest payable... with a stated rate of interest to be applied to the par amount; (ii) Have interest payable semiannually...

  3. 31 CFR 356.20 - How does the Treasury determine auction awards?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... point, for example, 17.13%. (b) Determining the interest rate for new note and bond issues. We set the interest rate at a 1/8 of one percent increment. If a Treasury note or bond auction results in a yield lower than 0.125 percent, the interest rate will be set at 1/8 of one percent, and successful bidders...

  4. 12 CFR 7.2020 - Acquisition and holding of shares as treasury stock.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... BANK ACTIVITIES AND OPERATIONS Corporate Practices § 7.2020 Acquisition and holding of shares as... shares is, and continues to be, for a legitimate corporate purpose. (b) Legitimate corporate purpose. Examples of legitimate corporate purposes include the acquisition and holding of treasury stock to:...

  5. 77 FR 50454 - Department of the Treasury Acquisition Regulations; Contract Clause on Minority and Women...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ... contractor make good faith efforts to include minorities and women in its workforce. This standard is derived..., against a contractor who fails to make good faith efforts to include minorities and women in its workforce. Treasury interprets ``good faith efforts'' to mean efforts consistent with the Equal Protection Clause of...

  6. 12 CFR 1704.3 - Collection of debts and referrals to the Department of the Treasury.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... OVERSIGHT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT OFHEO ORGANIZATION AND FUNCTIONS DEBT COLLECTION...) Referral of delinquent debts. (1) OFHEO shall transfer to the Secretary of the Department of the Treasury.... (2) OFHEO may transfer any past due, legally enforceable nontax debt that has been delinquent for...

  7. 7 CFR 1.344 - Deposit to Treasury of the United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Deposit to Treasury of the United States. 1.344 Section 1.344 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Procedures Related to Administrative Hearings Under the Program Fraud Civil Remedies Act of 1986 § 1.344 Deposit...

  8. 76 FR 57907 - Indorsement and Payment of Checks Drawn on the United States Treasury

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-19

    ... concern, FMS notes that it routinely exceeds the goal set forth in Part 240: that FMS will make every... payment of checks drawn on the United States Treasury. Part 240 sets forth how checks may be indorsed and... with the goal of the revised regulation--to expedite and streamline the process of collecting unpaid...

  9. XAS investigations of Fe(VI).

    SciTech Connect

    Kemner, K. M.; Kelly, S. D.; Orlandini, K. A.; Tsapin, A. I.; Goldfeld, M. G.; Perfiliev, Y. D.; Nealson, K. H.; Environmental Research; APS-USR; Jet Propulsion Lab.; Moscow State Univ.

    2001-03-01

    Recent attention has been given to a reexamination of results from the early Viking missions to Mars that suggested the presence of one or more strong oxidants in Martian soil. Since Fe is one of the main constituents of the Martian surface and Fe(VI) is known to be a highly reactive, strong oxidant, we have made XANES and EXAFS measurements of Fe(II), Fe(III), Fe(IV), and Fe(VI) in solid and solution forms. Results from these studies indicate a pre-edge XANES feature from Fe(VI) samples similar to that commonly seen from Cr(VI) samples. Results of first shell analysis indicate a linear relationship between the Fe-O bond length and Fe valence state.

  10. Rheology of water ices V and VI

    USGS Publications Warehouse

    Durham, W.B.; Stern, L.A.; Kirby, S.H.

    1996-01-01

    We have measured the mechanical strength (??) of pure water ices V and VI under steady state deformation conditions. Constant displacement rate compressional tests were conducted in a gas apparatus at confining pressures from 400 250 K. Ices V and VI are thus Theologically distinct but by coincidence have approximately the same strength under the conditions chosen for these experiments. To avoid misidentification, these tests are therefore accompanied by careful observations of the occurrences and characteristics of phase changes. One sample each of ice V and VI was quenched at pressure to metastably retain the high-pressure phase and the acquired deformation microstructures; X ray diffraction analysis of these samples confirmed the phase identification. Surface replicas of the deformed and quenched samples suggest that ice V probably deforms largely by dislocation creep, while ice VI deforms by a more complicated process involving substantial grain size reduction through recrystallization.

  11. 31 CFR 363.205 - How do I reinvest the proceeds of a maturing security held in TreasuryDirect ®?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... maturing security held in TreasuryDirect ®? 363.205 Section 363.205 Money and Finance: Treasury... PUBLIC DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Marketable Treasury Securities § 363.205 How do I reinvest the proceeds of a maturing security held in TreasuryDirect ®? (a) Method...

  12. 31 CFR 363.29 - May Treasury close an account, suspend transactions in an account, or refuse to open an account?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false May Treasury close an account, suspend transactions in an account, or refuse to open an account? 363.29 Section 363.29 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY...

  13. 31 CFR 363.209 - How can I direct that my marketable Treasury security be sold on the open market (Sell Direct ®)?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false How can I direct that my marketable Treasury security be sold on the open market (Sell Direct ®)? 363.209 Section 363.209 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY...

  14. 19 CFR Annex Vi to Part 351 - Countervailing Investigations Timeline

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Countervailing Investigations Timeline VI Annex VI to Part 351 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE ANTIDUMPING AND COUNTERVAILING DUTIES Pt. 351, Annex VI Annex VI to Part 351—Countervailing Investigations Timeline ER19MY97.000 ...

  15. 40 CFR Appendix Vi to Part 266 - Stack Plume Rise

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 28 2012-07-01 2012-07-01 false Stack Plume Rise VI Appendix VI to Part 266 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED... FACILITIES Pt. 266, App. VI Appendix VI to Part 266—Stack Plume Rise Flow rate (m3/s) Exhaust Temperature...

  16. 40 CFR Appendix Vi to Part 266 - Stack Plume Rise

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 28 2013-07-01 2013-07-01 false Stack Plume Rise VI Appendix VI to Part 266 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED... FACILITIES Pt. 266, App. VI Appendix VI to Part 266—Stack Plume Rise Flow rate (m3/s) Exhaust Temperature...

  17. 40 CFR Appendix Vi to Part 266 - Stack Plume Rise

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 26 2010-07-01 2010-07-01 false Stack Plume Rise VI Appendix VI to Part 266 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED... FACILITIES Pt. 266, App. VI Appendix VI to Part 266—Stack Plume Rise Flow rate (m3/s) Exhaust Temperature...

  18. 40 CFR Appendix Vi to Part 266 - Stack Plume Rise

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 27 2011-07-01 2011-07-01 false Stack Plume Rise VI Appendix VI to Part 266 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED... FACILITIES Pt. 266, App. VI Appendix VI to Part 266—Stack Plume Rise Flow rate (m3/s) Exhaust Temperature...

  19. 40 CFR Appendix Vi to Part 266 - Stack Plume Rise

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 27 2014-07-01 2014-07-01 false Stack Plume Rise VI Appendix VI to Part 266 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED... FACILITIES Pt. 266, App. VI Appendix VI to Part 266—Stack Plume Rise Flow rate (m3/s) Exhaust Temperature...

  20. 40 CFR 144.18 - Requirements for Class VI wells.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Requirements for Class VI wells. 144.18 Section 144.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Requirements for Class VI wells. Owners or operators of Class VI wells must obtain a permit. Class VI...

  1. Water in star-forming regions with Herschel (WISH). VI. Constraints on UV and X-ray irradiation from a survey of hydrides in low- to high-mass young stellar objects

    NASA Astrophysics Data System (ADS)

    Benz, A. O.; Bruderer, S.; van Dishoeck, E. F.; Melchior, M.; Wampfler, S. F.; van der Tak, F.; Goicoechea, J. R.; Indriolo, N.; Kristensen, L. E.; Lis, D. C.; Mottram, J. C.; Bergin, E. A.; Caselli, P.; Herpin, F.; Hogerheijde, M. R.; Johnstone, D.; Liseau, R.; Nisini, B.; Tafalla, M.; Visser, R.; Wyrowski, F.

    2016-05-01

    Context. Hydrides are simple compounds containing one or a few hydrogen atoms bonded to a heavier atom. They are fundamental precursor molecules in cosmic chemistry and many hydride ions have become observable in high quality for the first time thanks to the Herschel Space Observatory. Ionized hydrides such as CH+ and OH+ (and also HCO+), which affect the chemistry of molecules such as water, provide complementary information on irradiation by far-UV (FUV) or X-rays and gas temperature. Aims: We explore hydrides of the most abundant heavier elements in an observational survey covering young stellar objects (YSOs) with different mass and evolutionary state. The focus is on hydrides associated with the dense protostellar envelope and outflows, contrary to previous work that focused on hydrides in diffuse foreground clouds. Methods: Twelve YSOs were observed with HIFI on Herschel in six spectral settings providing fully velocity-resolved line profiles as part of the Water in star-forming regions with Herschel (WISH) program. The YSOs include objects of low (Class 0 and I), intermediate, and high mass, with luminosities ranging from 4 L⊙ to 2 × 105 L⊙. Results: The targeted lines of CH+, OH+, H2O+, C+, and CH are detected mostly in blue-shifted absorption. H3O+ and SH+ are detected in emission and only toward some high-mass objects. The observed line parameters and correlations suggest two different origins related to gas entrained by the outflows and to the circumstellar envelope. The derived column densities correlate with bolometric luminosity and envelope mass for all molecules, best for CH, CH+, and HCO+. The column density ratios of CH+/OH+ are estimated from chemical slab models, assuming that the H2 density is given by the specific density model of each object at the beam radius. For the low-mass YSOs the observed ratio can be reproduced for an FUV flux of 2-400 times the interstellar radiation field (ISRF) at the location of the molecules. In two high

  2. 2005 Non-Lethal Defense VI Symposium

    DTIC Science & Technology

    2005-03-16

    Untitled Document 2005 Non Lethal Defense VI Symposium.html[8/22/2016 9:24:13 AM] Non- Lethal Defense "VI" Symposium “Non- Lethal Weapon Options in...Current and Desired Capabilities Forum Army Non- Lethal Requirements, Brigadier General Coker, USA, TRADOC Successful Non- Lethal Illegal Alien...Interdiction Case, Rear Admiral Kunkle, USCG, Non Lethal IPT Member Luncheon Keynote Speaker, by Lieutenant General Jan Huly, USMC, Deputy Commandant for Plans

  3. ORNL fission product release tests VI-6

    SciTech Connect

    Osborne, M.F.; Lorenz, R.A.; Collins, J.L.; Lee, C.S.

    1991-01-01

    The ORNL fission product release tests investigate release and transport of the major fission products from high-burnup fuel under LWR accident conditions. The two most recent tests (VI-4 and VI-5) were conducted in hydrogen. In three previous tests in this series (VI-1, VI-2, and VI-3), which had been conducted in steam, the oxidized Zircaloy cladding remained largely intact and acted as a barrier to steam reaction with the UO{sub 2}. Test VI-6 was designed to insure significant oxidation of the UO{sub 2} fuel, which has been shown to enhance release of certain fission products, especially molybdenum and ruthenium. The BR3 fuel specimen used in test VI-6 will be heated in hydrogen to 2300 K; the Zircaloy cladding is expected to melt and runoff at {approximately}2150 K. Upon reaching the 2300 K test temperature, the test atmosphere will be changed to steam, and that temperature will be maintained for 60 min, with the three collection trains being operated for 2-, 18-, and 40-min periods. The releases of {sup 85}Kr and {sup 137}Cs will be monitored continuously throughout the test. Posttest analyses of the material collected on the three trains will provide results on the release and transport of Mo, Ru, Sb, Te, Ba, Ce, and Eu as a function of time at 2300 K. Continuous monitoring of the hydrogen produced during the steam atmosphere period at high temperature will provide a measure of the oxidation rate of the cladding and fuel. Following delays in approval of the safety documentation and in decontamination of the hot cell and test apparatus, test VI-6 will be conducted in late May.

  4. Historic American Buildings Survey Harold Allen, Photographer, June, 1964 VIEW: ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Historic American Buildings Survey Harold Allen, Photographer, June, 1964 VIEW: EXTERIOR: WEST (CLARK STREET) AND SOUTH (JACKSON BLVD.) SIDES - U.S. Post Office, Customs House & Sub-Treasury, 218 South Dearborn Street, Chicago, Cook County, IL

  5. Ferrate(VI) oxidation of aqueous cyanide

    SciTech Connect

    Sharma, V.K.; Rivera, W.; Smith, J.O.; O`Brien, B.

    1998-09-01

    The rates of oxidation of cyanide with Fe(VI) were measured as a function of pH and temperature. The reaction was found to be first order for each reactant. The rates decrease with increasing pH. The energy of activation was found to be 38.9 {+-} 1.0 kJ mol{sup {minus}1} at pH 9.0. The removal of cyanide by oxidation with Fe(VI) was studied at pH 7.5, 9.0, and 12.0. Fe(VI) removal efficiency was greater at pH 9.0 than at pH 7.5 and 12.0. At pH 9.0, Fe(VI) molar consumption was nearly equal to that of oxidized cyanide. Cyanate and nitrite ions were identified as the products of the reaction at pH 7.5. The experiments indicated 1:1 stoichiometric conversion of cyanide to nitrite ion at pH 9.0 and 12.0. Experiments were conducted to test the Fe(VI) removal efficiency of cyanide in electroplating rinsewater. The results indicate that Fe(VI) has the potential to serve as a reliable and safe oxidative treatment for removing cyanide in wastewater effluent.

  6. Structure of the human annexin VI gene

    SciTech Connect

    Smith, P.D.; Moss, S.E.; Davies, A.; Crumpton, M.J.

    1994-03-29

    The authors report the structure of the human annexin VI gene and compare the intron-exon organization with the known structures of the human annexin I and II genes. The gene is {approximately}60 kbp long and contains 26 exons. Consistent with the published annexin VI cDNA sequence, the genomic sequence at the 3{prime} end does not contain a canonical polyadenylation signal. The genomic sequence upstream of the transcription start site contains TATAA and CAAT motifs. The spatial organization of the exons does not reveal any obvious similarities between the two halves of the annexin VI gene. Comparison of the intron-exon boundary positions of the annexin VI gene with those of annexins I and II reveals that within the repeated domains the break points are perfectly conserved except for exon 8, which is one codon smaller in annexin II. The corresponding point in the second half of annexin VI is represented by two exons, exons 20 and 21. The latter exon is alternatively spliced, giving rise to two annexin VI isoforms that differ with respect to a 6-amino acid insertion at the start of repeat 7. 32 refs., 6 figs.

  7. Mucopolysaccharidosis VI in cats - clarification regarding genetic testing.

    PubMed

    Lyons, Leslie A; Grahn, Robert A; Genova, Francesca; Beccaglia, Michela; Hopwood, John J; Longeri, Maria

    2016-07-02

    The release of new DNA-based diagnostic tools has increased tremendously in companion animals. Over 70 different DNA variants are now known for the cat, including DNA variants in disease-associated genes and genes causing aesthetically interesting traits. The impact genetic tests have on animal breeding and health management is significant because of the ability to control the breeding of domestic cats, especially breed cats. If used properly, genetic testing can prevent the production of diseased animals, causing the reduction of the frequency of the causal variant in the population, and, potentially, the eventual eradication of the disease. However, testing of some identified DNA variants may be unwarranted and cause undo strife within the cat breeding community and unnecessary reduction of gene pools and availability of breeding animals. Testing for mucopolysaccharidosis Type VI (MPS VI) in cats, specifically the genetic testing of the L476P (c.1427T>C) and the D520N (c.1558G>A) variants in arylsulfatase B (ARSB), has come under scrutiny. No health problems are associated with the D520N (c.1558G>A) variant, however, breeders that obtain positive results for this variant are speculating as to possible correlation with health concerns. Birman cats already have a markedly reduced gene pool and have a high frequency of the MPS VI D520N variant. Further reduction of the gene pool by eliminating cats that are heterozygous or homozygous for only the MPS VI D520N variant could lead to more inbreeding depression effects on the breed population. Herein is debated the genetic testing of the MPS VI D520N variant in cats. Surveys from different laboratories suggest the L476P (c.1427T>C) disease-associated variant should be monitored in the cat breed populations, particularly breeds with Siamese derivations and outcrosses. However, the D520N has no evidence of association with disease in cats and testing is not recommended in the absence of L476P genotyping. Selection

  8. Characterization of Amoeba proteus myosin VI immunoanalog.

    PubMed

    Dominik, Magdalena; Kłopocka, Wanda; Pomorski, Paweł; Kocik, Elzbieta; Redowicz, Maria Jolanta

    2005-07-01

    Amoeba proteus, the highly motile free-living unicellular organism, has been widely used as a model to study cell motility. However, molecular mechanisms underlying its unique locomotion and intracellular actin-based-only trafficking remain poorly understood. A search for myosin motors responsible for vesicular transport in these giant cells resulted in detection of 130-kDa protein interacting with several polyclonal antibodies against different tail regions of human and chicken myosin VI. This protein was binding to actin in the ATP-dependent manner, and immunoprecipitated with anti-myosin VI antibodies. In order to characterize its possible functions in vivo, its cellular distribution and colocalization with actin filaments and dynamin II during migration and pinocytosis were examined. In migrating amoebae, myosin VI immunoanalog localized to vesicular structures, particularly within the perinuclear and sub-plasma membrane areas, and colocalized with dynamin II immunoanalog and actin filaments. The colocalization was even more evident in pinocytotic cells as proteins concentrated within pinocytotic pseudopodia. Moreover, dynamin II and myosin VI immunoanalogs cosedimented with actin filaments, and were found on the same isolated vesicles. Blocking endogenous myosin VI immunoanalog with anti-myosin VI antibodies inhibited the rate of pseudopodia protrusion (about 19% decrease) and uroidal retraction (about 28% decrease) but did not affect cell morphology and the manner of cell migration. Treatment with anti-human dynamin II antibodies led to changes in directionality of amebae migration and affected the rate of only uroidal translocation (about 30% inhibition). These results indicate that myosin VI immunoanalog is expressed in protist Amoeba proteus and may be involved in vesicle translocation and cell locomotion.

  9. 31 CFR 363.131 - What is a TreasuryDirect ® zero-percent certificate of indebtedness?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... a one-day maturity, which automatically rolls over at maturity until you request redemption. A zero... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false What is a TreasuryDirect ® zero... DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Zero-Percent Certificate of Indebtedness...

  10. 31 CFR 363.131 - What is a TreasuryDirect ® zero-percent certificate of indebtedness?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... a one-day maturity, which automatically rolls over at maturity until you request redemption. A zero... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What is a TreasuryDirect ® zero... DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Zero-Percent Certificate of Indebtedness...

  11. 31 CFR 363.131 - What is a TreasuryDirect ® zero-percent certificate of indebtedness?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... a one-day maturity, which automatically rolls over at maturity until you request redemption. A zero... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false What is a TreasuryDirect ® zero... DEBT REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Zero-Percent Certificate of Indebtedness...

  12. 31 CFR 363.131 - What is a TreasuryDirect ® zero-percent certificate of indebtedness?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... a one-day maturity, which automatically rolls over at maturity until you request redemption. A zero... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false What is a TreasuryDirect ® zero... SERVICE REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT Zero-Percent Certificate of Indebtedness...

  13. 31 CFR 306.117 - Withdrawal of eligible book-entry Treasury securities for conversion to registered form.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Withdrawal of eligible book-entry... PUBLIC DEBT GENERAL REGULATIONS GOVERNING U.S. SECURITIES Book-Entry Procedure § 306.117 Withdrawal of eligible book-entry Treasury securities for conversion to registered form. (a) Eligible book-entry...

  14. 31 CFR 363.36 - What securities can I purchase and hold in my TreasuryDirect ® account?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL SERVICE REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT General Provisions Governing Securities... securities that are available for purchase through the TreasuryDirect Web site. In addition, you can hold...

  15. 26 CFR 301.6312-2 - Certain Treasury savings notes acceptable in payment of certain internal revenue taxes.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 18 2011-04-01 2011-04-01 false Certain Treasury savings notes acceptable in... Collection General Provisions § 301.6312-2 Certain Treasury savings notes acceptable in payment of certain... savings notes are presently acceptable in payment of income taxes (current and back, personal and...

  16. 12 CFR 701.37 - Treasury tax and loan depositaries; depositaries and financial agents of the Government.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... UNIONS § 701.37 Treasury tax and loan depositaries; depositaries and financial agents of the Government... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Treasury tax and loan depositaries; depositaries and financial agents of the Government. 701.37 Section 701.37 Banks and Banking NATIONAL...

  17. 31 CFR 5.10 - How will Treasury entities use administrative offset (offset of non-tax Federal payments) to...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Offset Program. (1) In most cases, the Financial Management Service uses the Treasury Offset Program to... transferred to the Financial Management Service under § 5.9 of this part, Treasury entities will refer any... Management Service, in writing, that the debt is valid, delinquent, legally enforceable, and that there...

  18. 41 CFR 102-73.220 - What types of special purpose space may the Department of the Treasury lease?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... purpose space may the Department of the Treasury lease? 102-73.220 Section 102-73.220 Public Contracts and... REGULATION REAL PROPERTY 73-REAL ESTATE ACQUISITION Acquisition by Lease Special Purpose Space Delegations § 102-73.220 What types of special purpose space may the Department of the Treasury lease? The...

  19. 31 CFR 358.13 - What is Treasury's liability if the depository institution incurs a loss because it does not...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What is Treasury's liability if the depository institution incurs a loss because it does not follow required procedures? 358.13 Section 358.13... incurs a loss because it does not follow required procedures? We are not liable for any loss incurred...

  20. ViA: a perceptual visualization assistant

    NASA Astrophysics Data System (ADS)

    Healey, Chris G.; St. Amant, Robert; Elhaddad, Mahmoud S.

    2000-05-01

    This paper describes an automated visualized assistant called ViA. ViA is designed to help users construct perceptually optical visualizations to represent, explore, and analyze large, complex, multidimensional datasets. We have approached this problem by studying what is known about the control of human visual attention. By harnessing the low-level human visual system, we can support our dual goals of rapid and accurate visualization. Perceptual guidelines that we have built using psychophysical experiments form the basis for ViA. ViA uses modified mixed-initiative planning algorithms from artificial intelligence to search of perceptually optical data attribute to visual feature mappings. Our perceptual guidelines are integrated into evaluation engines that provide evaluation weights for a given data-feature mapping, and hints on how that mapping might be improved. ViA begins by asking users a set of simple questions about their dataset and the analysis tasks they want to perform. Answers to these questions are used in combination with the evaluation engines to identify and intelligently pursue promising data-feature mappings. The result is an automatically-generated set of mappings that are perceptually salient, but that also respect the context of the dataset and users' preferences about how they want to visualize their data.