The principal goal of the Yale/San Juan Southern Proper Motion Program (SPM, which is the southern extension of the Lick Observatory Northern Proper Motion Program, NPM), is the determination of absolute proper motions with respect to faint galaxies, ...
NASA Astrophysics Data System (ADS)
Based on ACRS represented by the Hipparcos Catalogue, the positions and absolute proper motions of 534 stars in a 100 ft x 100 ft region around the globular cluster M3(NGC 5272) are reduced by plates taken with the 40 cm refractor at Sheshan station of Shanghai Astronomical Observatory, referred to the positions and ...
Absolute proper motions are determined for stars and galaxies to V = 17.5 over a 450 deg2 area that encloses both Magellanic Clouds. The proper motions are based on photographic and CCD observations of the Yale/San Juan Southern Proper Motion program, ...
National Technical Information Service (NTIS)
The Lick NPM2 Catalog provides absolute proper motions, positions, and photographic photometry, measured in the Lick Northern Proper Motion (NPM) program, for 232,062 stars in the magnitude range 8
SIM will provide 4 pas precision absolute positions for stars down to 20 magnitude and parallaxes to comparable accuracy. The proper motion accuracy will be ...
NASA Website
Relative proper motions with typical standard errors approx.0.02 arcsec (century)/sup -1/ have been measured for 317 stars in the region of the globular cluster M5 yielding an excellent segregation of cluster members from field stars. The cluster membership status of several variable stars and UV-bright stars is discussed. The internal ...
Energy Citations Database
The goal of the Lick Northern Proper Motion (NPM) program is the construction of a catalog of star positions and absolute proper motions, using faint galaxies as a reference frame, for the sky north of declination -23 deg. The NPM program consists of 1246 fields, each 6 deg x 6 deg, ...
The final version of the XPM catalogue, created by the authors, contains about 314 million stellar positions and absolute proper motions and covers the whole celestial sphere without gaps in the magnitude range 10m < B < 22m. The analysis of stellar positions and proper motions of the XPM ...
The Yale/San Juan southern proper motion program (SPM) is the extension of the Lick Observatory northern proper motion program to the southern hemisphere. With respect to faint galaxies, the SPM will produce positions, absolute proper motion, magnitudes ...
Absolute proper motions in the FK4 system have been obtained for 61 open star clusters. Measurements and re-reduced data were used separately and in combination. A discussion is given for every cluster. The velocity of the sun relative to open clusters tu...
The Yale/San Juan Southern Proper Motion program (SPM) is an extension of the Lick Observatory Northern Proper Motion program (NPM) to the southern hemisphere. Absolute proper motions with respect to faint galaxies and positions will be determined for ...
High precision measurements of absolute proper motion for Galactic field RR Lyrae stars on the reference frame from the Lick NPM catalogue enables the investigation of space motions for these stars based on more reliable data. A programme has been started to carry out such measurements from plates taken with the 40 ...
Absolute proper motions are determined for stars and galaxies to V = 17.5 over a 450 deg{sup 2} area that encloses both Magellanic Clouds. The proper motions are based on photographic and CCD observations of the Yale/San Juan Southern Proper Motion ...
We present the fourth installment of the Yale/San Juan Southern Proper Motion Catalog, SPM4. The SPM4 contains absolute proper motions, celestial coordinates, and B, V photometry for over 103 million stars and galaxies between the south celestial pole and -20� declination. The catalog is ...
We present the fourth installment of the Yale/San Juan Southern Proper Motion Catalog, SPM4. The SPM4 contains absolute proper motions, celestial coordinates, and (B,V) photometry for over 103 million stars and galaxies between the south celestial pole and -20 deg declination. The catalog is ...
E-print Network
An apparent discrepancy between the results of Peery and Baumert on the mean absolute magnitude at 1.04 $mu$ of irregularly variable carbon stars is resolved. The mean absolute magnitude of this group of stars derived through a statistical analysis of their proper motions and radial velocities is -4.2 + or - ...
The Lick Northern Proper Motion (NPM) program has been described in Paper I. The NPM reductions for absolute proper motions and positions have been completed for 617 NPM fields, almost completely covering the sky more than ?10� from the galactic plane between declinations -3� and +68�. To ...
Relative proper motions with typical standard errors approx. +- 0''.020 century/sup -1/ have been measured for 266 stars in the region of M3 yielding an excellent segregation of cluster members from the field stars. The cluster membership status of several variable stars and UV-bright stars is discussed. The internal ...
The Lick Northern Proper Motion (NPM) program determines absolute proper motions, measured with respect to an extragalactic reference frame, for selected stars in the blue magnitude range 9-18, north of declination -23 deg. Positions and photographic photometry are also measured. The final NPM ...
We describe the use of the Lick Northern Proper Motion (NPM) program and its southern-sky complement, the Yale/San Juan Southern Proper Motion (SPM) program, to determine the Hipparcos proper motion link to the extragalactic reference system defined by galaxies. In total ~ ...
Of the 300 areas containing galaxies, covered by the program of the Pulkovo observatory, 157 are photographed in the declination zone from +90 to -5 degrees. In the present paper, reductions of relative proper motions of stars in the latter areas are obtained making use of the galaxies. The reductions are compared with those obtained from AGK3 stars and ...
The results of the determination of absolute proper motions based on the extragalactic reference frames from the NPM Catalogue for seven Galactic field RR Lyrae stars, RY Psc, XX And, RR Cet, XX Hya, TV Leo, U Com, and SW Aqr, are given and compared with the results from Wan et al., NPM, and Hipparcos. The internal precision of the ...
Translated from Astron. Zh.; 50: No. 2, 362-370(1973). A total of 143 galaxies have been identified on 2 deg x 2 deg first- and second-epoch Pulkovo normal-astrograph plates that include the special Selected Area 32, using Zwicky's galaxy catalog. Of these, 92 reference galaxies appearing on two pairs of plates (m/sub pg/ = 15.0 m) were selected and measured. ...
XPM-1.0 is the regular version of the XPM catalogue. In comparison with XPM, this astrometric catalogue of about 280 millions stars covering the entire sky from -90� to +90� in declination and in the magnitude range 10 < B < 22 mag is somewhat improved. The general procedural steps were followed as for XPM, but some of these were performed on a more sophisticated level. The XPM-1.0 ...
The Lick Northern Proper Motion (NPM) program measured proper motions, positions, and photographic photometry for some 149,000 stars (NPM1 Catalog) covering the sky outside the Milky Way north of declination 23 degrees. The NPM1 proper motions were measured with respect to ...
. We report on first results from an ongoing program to measure and analyze proper motions for hot subdwarf and white dwarf stars, with the aim of determining to which stellar population sdB stars (in the V magnitude range 10.5 to 14.5) belongs. Ours is the largest sample of hot subdwarf proper motions measured to ...
In this article we present in detail the methodology and the first results of a ground-based program to determine the absolute proper motion of the Fornax dwarf spheroidal galaxy. The proper motion was determined using bona fide Fornax star members measured with respect to a fiducial at-rest ...
We present the status of the Yale/San Juan Southern Proper Motion program (SPM) which is the southern hemisphere extension of the Lick Observatory Northern Proper Motion Program (NPM) with respect to faint galaxies. In addition to providing absolute proper ...
The UK Infrared Telescope Infrared Deep Sky Survey (UKIDSS) is the first of a new generation of infrared surveys. Here, we combine the data from two UKIDSS components, the Large Area Survey (LAS) and the Galactic Cluster Survey (GCS), with Two-Micron All-Sky Survey (2MASS) data to produce an infrared proper motion survey for low-mass stars and brown ...
This investigation has made use of plate and CCD material of the Yale-San Juan Southern Proper Motion program, to obtain a catalog of absolute proper motions in an area of 450 square-degree that encloses the Magellanic Clouds and includes 1,448,438 objects. The main goal has been to obtain an ...
This paper examines a series of measurements made to determine the proper motion and parallax of Barnard's Star using differential astrometry. In differential astrometry, the same reference stars are used for every coordinate determination. Although the absolute coordinate solution is offset by a constant due to the imprecisely known ...
From a comparison of absolute proper motions of stars from the XPM catalogue with those of the same stars from the PPMXL, UCAC3, Tycho-2 and XC1 catalogues, the equatorial components of the rotation vector of these coordinate systems are determined with respect to the coordinate system specified by positions and ...
We discuss the nature of eleven Possible Open Cluster Remnants (POCRs) by using absolute proper motions from the Southern Proper Motion (SPM) Program 3 (Girard et al. [CITE], AJ, 127, 3060) combined with near infrared photometry from 2MASS. The analysis is done by considering the distribution ...
The Lick Northern Proper Motion (NPM) program measures absolute proper motions, positions, and photographic photometry for ~ 300,000 stars with 8 <= B <= 18 in 1,246 6deg times 6deg fields covering the sky north of declination -23deg . Each NPM field was photographed with the Lick 51 cm ...
systematic effect in proper motions known as 'secular aberration drift'. This ... the sources' astrometric positions The apparent proper motion can reach ...
... We look at the degree of contamination within this range of proper motions, and point out the major sources of spurious high proper motion objects. ...
DTIC Science & Technology
... stars is possible only for the nearer clu:'ters with reasonable proper motions. The most prom aing of these is the Hyades, with a proper motion of the ...
... The solution gives the rotational vector of the SPM 2.0 proper motions related to the Hip- parcos proper-motion system. ...
Context. The historic plates of the Carte du Ciel, an international cooperative project launched in 1887, offer valuable first-epoch material for the determination of absolute proper motions. Aims: We present the CdC-SF, an astrometric catalogue of positions and proper motions derived from the ...
... Title : PROPER MOTIONS OF FAINT STARS. ... The data for 578 stars whose motions were accepted as ... than .03 sec in each coordinate of th motion. ...
The Yale/San Juan Southern Proper Motion Catalog 4 (Girard et al. 2011) was searched for common proper motion pairs with a total proper motion of at least 100 milliarcseconds per year (100 mas/y).
The NPM1 catalog is the first part of the Lick Northern Proper Motion (NPM) program to measure absolute proper motions, on an inertial system defined by some 50,000 faint galaxies, for some 300,000 stars over a blue apparent magnitude range from 8 to 18. There are 1246 6-degree by 6-degree ...
Approaches used in reductions for proper motion are based on methods developed by Vasilevskis et al.
NASA Technical Reports Server (NTRS)
The Absolute and Relational Theories of Space and Motion covers the philosophical discourse of major ideas of space and motion. Readers can navigate with the table of contents or scroll through the material.
NSDL National Science Digital Library
USNO-B1.0 and the Two Micron All Sky Survey (2MASS) are the most widely used all-sky surveys. However, 2MASS has no proper motions at all, and USNO-B1.0 published only relative, not absolute (i.e., on the International Celestial Reference Frame (ICRS), proper motions. We performed a new ...
We show results from our deep proper-motion survey of Kapteyn's Selected Areas (SAs; Casetti-Dinescu et al. 2006, AJ,132,2082), with a focus on fields that intersect the Sagittarius (Sgr) trailing tidal stream. Our data set, derived from matched, deep photographic plate pairs taken nearly 100 years apart, provides a unique window on the motions of stars in ...
Translated from Astron. Zh.; 49: No. 6, 1326-1327(1972). Three double stars, which are very likely physical binary systems, were identified from their common proper motions. The absolute and relative positions are tabulated. The distance of these binaries is approximately 30--60 pc; their orbital periods are approximately ...
We investigate the relationship between the rotational and velocity vectors in pulsars, in order to determine the direction of the natal "kick� delivered to the pulsar during the supernova of a massive parent star. Absolute polarization angles are compared with published values for the proper motion angles of pulsars, with ...
As part of the Minnesota Automated Plate Scanner project, we are repeating the proper motion survey for which the machine was originally built. We have scanned the Palomar Schmidt red plates taken by Willem Luyten in the 1960's with glass copies of the POSS I red plates. Epoch difference varies from field to field but is typically in the range of 11-15 ...
The authors present an intensive analysis of the FK5 proper-motion system via the two large astrographic catalogs, the Positions and Proper Motions (PPM) catalog and the Astrographic Catalog Reference Stars (ACRS), compared with the Hipparcos proper motio...
26 potential sources will exhibit proper motion greater than 4 arcminutes ... motion signal measured in ?-rays - A search for the proper motion of ?-ray ...
... The number of stars with large parallaxes or proper motions is expected to be ... Hence, it is sufficient to measure the differential motion of the few ...
The methods of the derivation of fundamental proper motions are reviewed and comparisons are made between the systems of GC, N30, FK3 and FK4. Distance scales are discussed which can be established from radial velocities and absolute proper motions on the basis of various fundamental systems. ...
The Lick Northern Proper Motion (NPM) program is nearing completion after a half-century of work. Two-epoch photography began in 1947 and was completed in 1988. Measurements and reductions for proper motions, positions, and two-color photometry in the sky outside the Milky Way (``NPM1'') began in 1975 and were ...
The Lick Northern Proper Motion (NPM) program, a two-epoch (1947-1988) photographic survey of the northern two-thirds of the sky (?>~-23deg), has measured absolute proper motions, on an inertial system defined by distant galaxies, for 378,360 stars in the magnitude range 8<~B<~18. The ...
We present the results of monthly monitoring VLBI observations of water maser emission in the star forming region ON2 with the VLBI Exploration of Radio Astrometry (VERA). Relative proper motions of the water masers indicate the existence of an outflow from a YSO in the east-west direction. Correlation was found between radial velocities of the water ...
We suggest a method for extracting important cosmological information from observational data on galaxy proper motions on the celestial sphere. These data can be used to reconstruct the three-dimensional velocities of galaxies relative to the cosmicmicrowave background (peculiar velocities), and to separate the Hubble and peculiar components of the ...
The NPM1 Catalog provides absolute proper motions, positions, and photographic photometry, measured in the Lick Northern Proper Motion (NPM) program, for some 149,000 stars in the magnitude range 8
We have carried out multi-epoch VLBI observations of the H2O maser sources associated with young stellar objects (YSOs) in nearby molecular clouds with VERA (VLBI Exploration of Radio Astrometry), which is a newly constructed VLBI network in Japan (Kobayashi et al. 2003). The main goal of our study is to measure the absolute proper ...
We describe the use of the Lick Northern Proper Motion (NPM) program and its southern-sky complement, the Yale/San Juan Southern Proper Motion (SPM) program to determine the Hipparcos proper-motion link to the extragalactic reference system defined by galaxies. Particular attention is given to ...
We present techniques for obtaining precision astrometry using old photographic plates from assorted large-aperture reflectors in combination with recent CCD Mosaic Imager frames. At the core of this approach is a transformation of plate/CCD coordinates into a previously constructed astrometric reference frame around the open cluster NGC 188. This allows us to calibrate independently the optical ...
Using the superior resolution of HST, we propose to continue our proper motion survey of Galactic dwarf galaxies. The target galaxies include one classical dwarf, Leo II, and six that were recently identified in the Sloan Digital Sky Survey data: Bootes I, Canes Venatici I, Canes Venatici II, Coma Berenices, Leo IV, and Ursa Major II. We will observe a ...
The statistical parallax technique is applied to a sample of 262 RRab Lyrae variables with published photoelectric photometry, metallicities, and radial velocities and with measured absolute proper motions. Hipparcos, PPM, NPM, and the Four-Million Star Catalog (Volchkov et al. 1992) were used as the sources of ...
We present a sample of 364 M subdwarfs from the 7th Data Release of the Sloan Digital Sky Survey (DR7; SDSS). This catalog contains stellar coordinates, SDSS magnitudes, spectral classes, radial velocities, proper motions, absolute magnitudes and estimated distances. We discuss the selection criteria, the spectral classification and ...
We present absolute proper motions in Kapteyn Selected Area (SA) 103. This field is located 7 deg. west of the center of the Virgo Stellar Stream (VSS), and has a well-defined main sequence representing the stream. In SA 103, we identify one RR Lyrae star as a member of the VSS, according to its metallicity, radial velocity, and ...
We present results from a WIYN/Orthogonal Parallel Transfer Imaging Camera photometric and astrometric survey of the field of the open cluster NGC 188 ((l, b) = (122.{sup 0}8, 22.{sup 0}5)). We combine these results with the proper-motion and photometry catalog of Platais et al. and demonstrate the existence of a stellar overdensity in the background of NGC 188. The ...
Reductions of PDS microdensitometer scans of 20 plates from three different telescopes over an epoch range of 92 yr have yielded proper motions and photometry for more than 250 stars down to V about 16 in the region of the poorly studied globular cluster M28 (NGC 6626). Membership probabilities for these stars, including several variables, are derived from ...
We propose to obtain second epoch imaging of the globular cluster NGC 6397, which has the deepest ACS/WFC dataset {126 orbits in Cycle 13} ever obtained in a globular cluster. These additional 14 orbits would enable the construction of a proper motion - cleaned white dwarf cooling sequence reaching fainter than the observed truncation point of the white ...
The large proper motion of the apparent runaway star CD -23$sup 0$ 14002 is shown to be spurious. The proper motion of this early B star is consistent with its membership and origin in Simeis 188. (auth)
New proper motions have been determined for over 700 stars in the Hyades region. These have been combined with proper motions from other sources, thus giving the most accurate proper motions available for faint Hyades members. New photoelectric observatio...
We present the initial results of multiepoch VLBI observations of 22 GHz H2O masers in the Orion KL region with VERA (VLBI Exploration of Radio Astrometry). With the VERA dual-beam receiving system, we carried out phase-referencing VLBI astrometry, and successfully detected the annual parallax of Orion KL to be 2.29 � 0.10 mas, corresponding to a distance of 437 � 19 pc from the Sun. The ...
... STARS. XXXVI. PROPER MOTIONS FOR THIRTY-EIGHT ANCIENT NOVAE AND U GEMINORUM VARIABLES,. Corporate ...
We report on absolute proper-motion measurements of H2O maser features in the NGC 281 West molecular cloud, located ~320 pc above the Galactic plane and associated with an HI loop extending from the Galactic plane. We conducted six-epoch phase-referencing observations of the maser source with VERA (VLBI Exploration of Radio Astrometry) over six months ...
We report on absolute proper-motion measurements of an H2O maser source in the NGC 281 West molecular cloud, which is located ~320 pc above the Galactic plane and is associated with an HI loop extending from the Galactic plane. We have conducted multi-epoch phase-referencing observations of the maser source with VERA (VLBI Exploration of Radio Astrometry) ...
The positions and proper motions of HZ Her, the optical counterpart of the X-ray source Her X-1, and
... From Hipparcos proper motions, we have analyzed the lo- cal kinematics of the Milky Way from the young O-B5 stars, classical Cepheids, and the ...
... Abstract : From Hipparcos proper motions, the authors analyze the local kinematics of the Milky Way from the young O-B5 stars, classical Cepheids ...
... catalog are derived from the measured proper motion differences of Hipparcos and Tycho-2 (Delta mu), accelerations of proper motions (mu .), and ...
Nov 8, 2004 ... In total, there are revised proper motion measurements and coordinates ... A Catalogue of Stars with Proper Motions Exceeding 0.5" Annually, ...
... Accession Number : ADA542963. Title : Proper-Motion Study of the Magellanic Clouds Using SPM Material. Descriptive Note : Journal article. ...
... Accession Number : ADA436022. Title : Proper Motions of Dwarf Spheroidal Galaxies from Hubble Space Telescope Imaging: III. ...
... Accession Number : ADA531789. Title : Proper Motions from the Pan-STARRS PS1 Survey. Descriptive Note : Conference paper. ...
The paper gives tables of data on the measurement of proper motion of stars in the vicinity of the South Galactic pole.
... Accession Number : AD0722342. Title : Proper Motion Survey with the Forty-Eight Inch Schmidt Telescope. XXVII. The South Galactic Pole,. ...
... Accession Number : ADA205161. Title : Precise Proper-Motion Measurement of Solar Granulation. Corporate Author : AIR ...
... It is also clear that in order to convert observed proper motion and radial velocity into true tangential and radial velocities of the observed object ...
... It also is clear that to convert observed proper motion and radial velocity into true tangential and radial velocities of the observed object, additional ...
... Accession Number : AD0691885. Title : PROPER MOTION SURVEY WITH THE FORTY-EIGHT INCH SCHMIDT TELESCOPE. XVII. ...
... Accession Number : AD0635958. Title : PROPER MOTION SURVEY WITH THE FORTY-EIGHT INCH SCHMIDT TELESCOPE. IX. ...
... Title : PROPER MOTION SURVEY WITH THE FORTY-EIGHT INCH SCHMIDT TELESCOPE. V. THREE REGIONS IN THE HYADES,. ...
Nov 8, 2004 ... The PPM database is the Catalog of Positions and Proper Motions. It combines the two catalogs for PPM North and PPM South, the Bright Stars ...
Nov 6, 2006 ... The mean proper motion of the cluster in the RA direction, ... A coded reference for the source of the mean proper motion determination. ...
Jun 28, 2009 ... But to do this, the star's proper motion, and a cyclic ... While the proper motion causes the star to move 1.5 arcseconds per year, ...
... Accession Number : AD0698306. Title : A SEARCH FOR FAINT BLUE STARS. L. PROPER MOTIONS FOR 951 FAINT BLUE STARS,. ...
... The 'Proper Motions of Fundamental Stars' catalog (PMFS) contains proper motions of 4638 stars common to the Hipparcos and Basic FK5/FK5 ...
We re-examine the evidence for alignment of the proper motion and fiducial polarization-angle directions in radio pulsars given by Johnston et al., and we find that the case is probably stronger than this paper asserts. Other alignments are examined using the published literature and recent Arecibo polarimetry, providing an enlarged case that pulsar ...
The velocity and apex coordinates of the solar motion are determined from the proper motions of 35 open clusters observed exclusively by photographic techniques at various world observatories.
...law judge shall pass upon all motions properly addressed to him or...by the DOT decisionmaker on a motion is essential to the proper conduct of the proceeding...administrative law judge may refer such motion to the DOT decisionmaker...
Code of Federal Regulations, 2010
... that in diffusion studies the proper attention has ... particles is put into a turbulent motion, after ... atmospheric motions approach to the state of random ...
Astronomers call the movements of the stars "proper motion"; it is defined as the apparent angular motion of a star across the sky with respect to more ...
...motion, on joint motion by the parties, or on motion by any party. The motion shall state the error in the transcript and the...oral argument without leave of the Commission upon proper motion. (2) A motion by amicus curiae seeking...
Proper mixing and handling of polymer ingredients is an absolute necessity ... containers to use are those made of glass, aluminum, stainless steel, Teflon, ...
In preparation for the first simulation of a real globular cluster with a few 10^5 particles, possible by the advent of the new GRAPE-8, the MODEST community charged our group to provide all the needed observational inputs. The selected clusters for this experiment were M4 and NGC6397. We present the status of the project. The requested observational inputs are: cluster membership, internal ...
... mechanisms. This is a complex and to make proper adjustment of antigravity system involving many subsystems. There ...
... The motivation behind the ACT was to provide accurate proper motions for the majority of the stars in the Tycho Catalogue. ...
Proper motion measurements derived from timing observations are given for 10 pulsars, two of which are significant upper limits. For two of these pulsars, no previous proper motion results have been reported. The others provide an opportunity to compare proper motions ...
... Title : Large-Scale Motions on the Sun ... s made in a proper spatial-temporal ... Descriptors : *DYNAMICS, *MOTION, *SOLAR CYCLE, *SUN, *SOLAR ...
... I. DISCOVERY OF NEW PROPER MOTION STARS IN UCAC3 WITH 0.40 yr �1 > μ ⩾ 0.18 yr �1 BETWEEN DECLINATIONS �90 � AND �47 � ...
... I. Discovery of New Proper Motion Stars in UCAC3 With 0".40/yr > mu > 0".18/yr Between Declinations -90 deg and -47 deg. ...
...1025.16. (d) Proper class action determination. Upon motion of Complaint Counsel...whether the action is a proper class action. It is a proper class action if the...membership. Upon motion of any party or...
By using the plate data of Shanghai Astronomical Observatory, which were taken with the 40 cm astrograph of focal length 6.9 m at Zo-Se, proper motions and membership probabilities of 364 stars in the region of the open cluster NGC 6530 are determined. The 79 stars of the Tycho-2 Catalogue found in the cluster region are used as reference stars for central ...
We present a preliminary version of CPMDS, a new catalogue of Northern common proper motion visual double stars. All these stars are laying in the Bordeaux Carte du Ciel zone +11�<=?<=+18�. We applied a statistical hypothesis t-test in the proper motions of the components. The proper ...
The EJS Parallactic Proper Motion Model illustrates the phenomenon known as parallactic proper motion. Proper motion refers to the progressive (non-oscillatory) apparent motion of a star relative to more distant background stars. If this apparent ...
The use of Global Positioning System (GPS) measurements for geodetic fixing of tide gauges and the monitoring of their apparent vertical land motions was first recommended over two decades ago. Then, the idea was to bring tide gauge benchmarks into a common and global reference, i.e. a terrestrial reference frame (TRF), that would, with an adequate long-term stability, allow ...
We propose to measure the proper motion of the central compact object (CCO) in Cassiopeia A over a 10-year baseline. The CCO is an enigma that does not fit cleanly into any compact object category. It is offset from the optical expansion center of the supernova remnant which suggests a proper motion of 350 km/s in ...
...summary judgment); and (4) Any other motion to dismiss. (d) Other motions. Other motions may be made in good faith and in proper form. When filing a motion for an enlargement of time, the moving party shall state that it has...
Useful constraints on the orbits and mass ratios of astrometric binaries in the Hipparcos catalog are derived from the measured proper motion differences of Hipparcos and Tycho-2 (Delta mu), accelerations of proper motions (mu .), and second derivatives o...
Over the past twenty years motions of faint blue stars have been determined at the University of Minnesota. The document gives all proper motions derived for these stars.
We present absolute parallaxes and relative proper motions for the central stars of the planetary nebulae NGC 6853 (The Dumbbell), NGC 7293 (The Helix), Abell 31, and DeHt 5. This paper details our reduction and analysis using DeHt 5 as an example. We obtain these planetary nebula nuclei (PNNi) parallaxes with astrometric data from ...
From as early as the beginning of the 20th Century the distance modulus of the Hyades was estimated to be near 3.00 magnitudes. The basis was proper motions derived from meridian circle observations and rather accurate radial velocities. In 1966 Paul Hodge and I suggested that it be revised upward by about 0.4 magnitudes. The reasons for this were ...
The distances and kinematics of brown dwarfs provide key statistical constraints on their ages, moving group membership, absolute brightnesses, evolutionary trends, and multiplicity. Yet fundamental measurements of parallax, proper motion and radial velocity have been made for only a relatively small fraction of the known brown dwarf ...
A proper motion study of the globular cluster NGC 6397 (Rees et al., in preparation) found that the cluster passed through the Galactic disk less than 5 Myr ago. The three-dimensional space velocity of NGC 6397 from that study allows us to determine where it hit the disk. We have used various measurements of the absolute ...
We have derived the absolute proper motion (PM) of the globular cluster M55 using a large set of CCD images collected with the du Pont telescope between 1997 and 2008. We find (?? cos ?, ??) = (-3.31 � 0.10, -9.14 � 0.15) mas yr-1 relative to background galaxies. Membership status was determined for 16 945 stars with 14 < V < ...
Present-Day Relative and Absolute Plate Motion Calculators from University of Tokyo, Ocean Research Institute [ORI_Plate_Motion_Calc] ...
The device determines the absolute transient motion of the ground particle from an explosion above or below the surface of the ground or by the impact or a large mass on the surface of the ground. The relative motion between the weight and the inner case ...
We present and analyse space motions and orbits for a sample of 15 galactic globular clusters. The absolute proper motions of these clusters have been determined with respect to reference stars of the new Hipparcos system. Orbital integrations in two model potentials for the Galaxy are considered. The sample shows ...
Aims: Completing the poorly known substellar census of the solar neighbourhood, especially with respect to the coolest brown dwarfs, will lead to a better understanding of failed star formation processes and binary statistics with different environmental conditions. Methods: Using UKIDSS data and their cross-correlation with the SDSS, we searched for high proper ...
The most important invariants of the motion of a celestial body are the absolute values of the spin angular momentum and the orbital angular momentum. ...
... support point and with the center of inertia on the axis of rotation, uniform rotation about the vertical axis is studied for absolute Lyapunov stability. ...
... for predicting the absolute and relative body deflections of ... Subject Categories : STRUCTURAL ENGINEERING AND BUILDING TECHNOLOGY. ...
... which satisfy the inequality the absolute value of ... THEORY, *CELESTIAL MECHANICS), LINEAR SYSTEMS, STABILITY, ORBITS, MATHEMATICAL ...
... variable) - velocity of a projectile's forward motion during its absolute movement in the bore. ... instrument showing bearing of ...
The NPM2 Catalog is the second part of the Lick Northern Proper Motion (NPM) program to measure absolute proper motions, on an inertial system defined by some 50,000 faint galaxies, for nearly 400,000 stars over a blue apparent magnitude range from 8 to 18. There are 1246 6x6degree fields in ...
Data for the motions of 3478 stars are presented. The data were obtained with the automated-computerized plate scanner and measuring machine. Only data for those stars for which no earlier determination of proper motions are included. (Author)
We derived the absolute proper motion (PM) of the old, solar-metallicity Galactic open cluster M 67 using observations collected with CFHT (1997) and with LBT (2007). About 50 galaxies with relatively sharp nuclei allow us to determine the absolute PM of the cluster. We find (?_? cos ?, ?_?)_J2000.0 = (-9.6 � ...
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... Accession Number : AD0284518. Title : A SEARCH FOR FAINT BLUE STARS. XXIX. PROPER MOTIONS OF 121 FAR SOUTHERN BLUE STARS. ...
... Accession Number : AD0228155. Title : A SEARCH FOR FAINT BLUE STARS. XVII. PROPER MOTIONS FOR 101 FAINT BLUE STARS. ...
... Accession Number : AD0419159. Title : A SEARCH FOR FAINT BLUE STARS XXXIII. PROPER MOTIONS FOR 148 PHL STARS XXXIV. ...
The adoption of the International Celestial Reference System MRS based on VLBI observations of extragalactic radio sources, by the International Astronomical Union (IAU), since 1st January 1998, has open a new era for astronomy. The MRS and the corresponding frame ICRF replaced the FK5 based on positions and proper motions of bright stars. According to its ...
...provided, except that all motions to dismiss petitions shall...any proceeding shall make a motion for intervention, stating...upon such terms as he may deem proper, and such intervenor shall...the proceeding. (c) All motions, rulings, and orders...
A previous outburst of the eruptive star associated with the transient X- ray source A0620-00, first detected in 1975 August, has been discovered on Harvard plates taken in 1917. We present the light curve of the earlier event and conclude that this star is a typical recurrent nova with an absolute magnitude M/sub V/=-5.9+-0.5 at maximum brightness. The A0620-00 star ...
We present observational results on the red supergiant VY Canis Majoris with VERA. We have observed 22 GHz H_2O masers and 43 GHz SiO masers (v=1 and 2 J=1-0) around VY CMa for 13 months. We successfully detected a parallax of 0.87 � 0.08 mas, corresponding to 1.15 +0.10 -0.09 kpc of distance using H_2O masers. As results of phase--referencing analyses, we have measured ...
... a separation equal in magnitude and direction to the aircraft's motion during the ... Upon proper delay of the first received signal, the returns from the ...
... For Reynolds numbers R > 9 no proper nonoscillating flows ... deviation X" between the spiral motions and an ... circular motion at the surface, which is ...
But to do this, the star's proper motion, and a cyclic "parallax" motion caused by Earth's changing vantage point as it orbits the sun, must be measured and ...
... action as it determines to be proper under substantive ... shall be accompanied by a motion for leave ... oral argument shall not be permitted on motions. ...
... In total, 662 umbral dots were tracked and their intensity variations, effective diameters, lifetimes, and proper motions were measured. ...
... Accession Number : ADD810103. Title : Defining a Safe Distance from Dangerous Machine Motion: Properly Installing Safety Light Curtains. ...
... of the major axis of pendulous motion rotates from ... the VSA, and the pendulous motions sensed by ... work very well, and a proper treatment including ...
... 27). Properly secure jar on torque meter. Ease closures off in smooth, continuous motion rather than rapid, jerking motion. ... Torque meter. Figure 27. ...
Center for Food Safety and Applied Nutrition (CFSAN)
... As before, the motions have been checked on the plates of the Bruce Proper Motion Survey wherever possible but this survey covers only about 30 ...
The NPM2 Catalog is the second part of the Lick Northern Proper Motion (NPM) program to measure absolute proper motions, on an inertial system defined by distant galaxies, for nearly 400,000 stars over a blue apparent magnitude range from 8 to 18. There are 1246 6x6degree fields in the NPM ...
The results of UBV photometry for 32 large proper motion stars are presented. The (B - V) vs. (U - B) diagram is used to select probable subluminous stars. The stars which are nearer than 20 pc according to their photometric parallaxes are given. (auth)
The longitudinal proper motion of sunspot groups has been shown to be a function of their size and relative extension in longitude. Two theories are proposed to explain these effects, which theories assume that the wind circulation of the spots and the wi...
This paper reviews the Lick Northern Proper Motion (NPM) program, describing its goals, organization, and methods, summarizing its progress, and outlining the work remaining for the future. The first phase of the NPM Program (outside the Milky Way) is now nearing completion.
We describe a powerful cross-correlation technique for the precise measurement of the proper motion of tracers seen on successive images of a time series of solar granulation. The cross correlation is defined as a function of position in the image, within...
The machine-readable version of the catalog, as it is currently being distributed from the Astronomical Data Center, is described. The catalog is a summary compilation of the Lowell Proper Motion Survey for the Southern Hemisphere, as completed to mid-197...
in }ligh-])recisiorl clctcrminatio]ls of proper motions and ~Jarallaxes. ... of the position, proper motion, and l)arallax of S[)lltll~'r]l-l lcrnis])llcre ...
The catalog provides improved mean positions and proper motions for the classical 1535 fundamental stars, already included in catalogs 3 and 4, and mean positions and proper motions for new fundamental stars extending also the fundamental system to the ap...
Lunar occultations were analyzed to detect errors in the proper motion system of the Hipparcos frame. The analysis suggests much larger errors in the rotation of the Hipparcos reference frame than those explained by the Hipparcos team, which were determin...
Observed positions, proper motions, estimated photographic magnitudes and colors, and references to identifications in other catalogs are included. Photoelectric data on the UBV system are included for many stars, but no attempt was made to find all exist...
Proper motion surveys have historically revealed a large fraction of our nearest stellar neighbours. The usual method is to search plate pairs typically taken a decade or more apart for relative displacements. However, stars with large proper motions can ...
Astrometric cluster membership probabilities have been derived from proper motions measured by other authors for stars in the region of the globular cluster M13. Several stars of individual interest are discussed.
...proceeding further. While it is proper to accept motions only from official delegates and...delegates, it is, however, equally proper to accept discussion from anyone...the pertinent features of the motion. (f) Proposals that...
Optical data taken in Jan. 87 compared to the discovery plate of 1975.2 show no proper motion for PSR 0833-45, while a very significant one was expected if the pulsar originated in the center of the Vela supernova remnant (SNR), until now associated with ...
The three-year LDRD ''CNC Micromachines'' was successfully completed at the end of FY02. The project had four major breakthroughs in spatial motion control in MEMS: (1) A unified method for designing scalable planar and spatial on-chip motion control systems was developed. The method relies on the use of parallel ...
DOE Information Bridge
Aims: WISE provides an infrared all-sky survey that aims at completing our knowledge on the possibly dramatically increasing number of brown dwarfs with lower temperatures. We search for the nearest representatives of the coolest brown dwarfs, which will be very interesting for detailed follow-up observations, once they have been discovered. Methods: We used the preliminary data release from ...
A set of 41 nearby stars (closer than 25 pc) is investigated which have very wide binary and common proper motion (CPM) companions at projected separations between 1000 and 200,000 AU. These companions are identified by astrometric positions and proper motions from the NOMAD catalog. Based mainly on measures of ...
... given an assembly of rigid parts, identify a proper subassembly that ... of the partitioning problem under varying types of relative motions allowed for ...
... of field observations, the stars, are perfectly known, including also the various astronomic reductions such as proper motion, aberration, parallax etc ...
In this thesis, the proper motions of two Local Group galaxies, namely M 33 and IC10. The proper motions were measured by phase-referencing Very Long Baseline Interferometry (VLBI) observations of water vapour masers in the galaxies with respect to nearby background quasars. These results can be used to constrain ...
However, some cosmological models of the expanded Universe predict that systematic astrometric proper motions of distant quasars do not vanish as the radial ...
... might not display properly since your ... STABILITY, ACCELEROMETERS, FLIGHT, SPINNING(MOTION), SPIN STABILIZED AMMUNITION ...
These three sources are identified as asteroids by their proper motion, and are in the MpChecker database (Ruanda, 1997 WZ36, and 2004 PN39). ...
The present paper describes an automated system for measuring stellar proper motions on the basis of
... Pages might not display properly since your ... forces in a spin to a ... BALANCE, AERODYNAMIC CHARACTERISTICS, SPINNING(MOTION), PURSUIT ...
The neutron star X-ray binary Circinus X-1 is known to have a relatively low proper motion and systemic radial velocity, demonstrating that the system has a substantial peculiar velocity. With a proper motion of <5 mas/yr, high-precision VLBI astrometric observations are therefore the only way to accurately ...
... Abstract : The present charts were prepared in connection with a study of the proper motions in the Orion Nebula Cluster, based upon plates taken ...
Page 1. A CATALOGUE OF 9867 STARS "0. IN THE SOUTHERN HEMISPHERE WITH PROPER MOTIONS EXCEEDING 0."2 ANNUALLY ...
Page 1. (,,, A CATALOGUE OF 7127 STARS IN THENORTHERN HEMISPHERE tsw WITH PROPER MOTIONS EXCEEDING 0.:2 ANNUALLY ...
Observations covering a period of 20 years show that the large proper motion (4.08 arcsec/yr) of the
We present a novel technique to determine the absolute inclination of single stars using multi-wavelength submilliarcsecond astrometry. The technique exploits the effect of gravity darkening, which causes a wavelength-dependent astrometric displacement parallel to a star's projected rotation axis. We find that this effect is clearly detectable using SIM Lite for ...
We present a novel technique to determine the absolute inclination of single stars using multi-wavelength submilliarcsecond astrometry. The technique exploits the effect of gravity darkening, which causes a wavelength-dependent astrometric displacement parallel to a star's projected rotation axis. We find that this effect is clearly detectable using SIM Lite for various giant ...
We report on the results of astrometric observations of H2O masers toward a Mira variable, SY Sculptoris (SY Scl), with the VLBI Exploration of Radio Astrometry (VERA) from 2006 October to 2008 October. We determined that SY Scl's annual parallax is 0.75�0.03 mas, corresponding to a distance of 1.33�0.05 kpc. SY Scl is 1.3 kpc south of the Galactic plane and moves approximately south from the ...
This paper examines a subset of objects from the USNO-B1 catalogue with listed proper motions between 1.0 and 5.0 arcseconds per year. We look at the degree of contamination within this range of proper motions, and point out the major sources of spurious ...
I discuss the prospects of detecting the smallest dark matter bound structures present in the Milky Way by searching for the proper motion of gamma-ray sources in the upcoming Gamma Ray Large Area Space Telescope all sky map. I show that for dark matter particle candidates that couple to photons the detection of at least one gamma-ray microhalo source with ...
PubMed
In continuation of the General Catalogue of Proper Motions in the North Polar Cap-the area north of declination +75 - data are here given for the proper motions of 7041 stars with declinations between +70 and +75 (1950). These were found and measured on 2...
The positions and proper motions of HZ Her, the optical counterpart of the x-ray source Her X-1, and 12 field stars are determined in the system of the FK4. The proper motion of HZ Her is consistent with that expected from a relatively low peculiar velocity object located at the approx.3 kpc distance estimated for ...
We report a late M-type, common proper motion companion to a nearby young visual binary HIP 115147 (V368 Cep), separated by 963 arcsec from the primary K0 dwarf. This optically dim star was identified as a candidate high proper motion, nearby dwarf LSPM J...
We report the identification of fifteen new common proper motion stars detected during the course of an extensive data mining search in astrometric and non-astrometric databases. In order to compile our final list, several catalogs were searched and compared; this approach allows us to avoid overlooking potential pairs due to large differences in the ...
Several nebular features, as well as one faint star, with large proper motions were identified within the Orion nebula. The measured proper motions correspond to tangential velocities of up to approximately 70 km sec/sup -1/. One new probable variable star was also found.
We present absolute parallaxes and proper motions for seven members of the Hyades open cluster, pre-selected to lie in the core of the cluster. Our data come from archival astrometric data from fine guidance sensor (FGS) 3 and newer data for three Hyads from FGS 1r, both white-light interferometers on the Hubble Space Telescope (HST). ...
We used a reaction-time pvrdbp to examine the extent to which motion detection depeods 08 relative motion. In tbe absence of rehtive moth the respoases couhlbedescribedbyishnglemmklbased on tbe detection of a fixed c&asp ia position. If relative motion was grepent, the v&d be modelled using characteri & of ...
A new method for combined calculations of proper motions (PMs) based on accurate measurements of POSS1 and POSS2 epoch plates is given. The positional accuracy of various surveys and catalogues is estimated, and statistical weights for each of them are established. To achieve the best positions, weighted averaging of direct measurements on DSS1/DSS2, and ...