High resolution spectroscopic analysis of cool stars possible members of the AB Doradus moving. In this contribution we present a detailed spectroscopic analysis of sev- eral late-type stars possible members of the nearby young moving group AB Do- radus. We have used high resolution echelle ...

We identify a group of ~20 co-moving, mostly southern hemisphere, ~200 Myr old stars near Earth. Of the stars likely to be members of this Carina-Near Moving Group, in either its nucleus (~30 pc from Earth) or surrounding stream, all but 3 are plausible members of a multiple star system. The nucleus is (coincidentally) located quite close to the nucleus of ...

AB Doradus (AB Dor) is the nearest identified moving group. As with other such groups, the age is important for understanding of several key questions. It is important, for example, in establishing the origin of the group and also in comparative studies of the properties of planetary systems, eventually surrounding ...

We propose 35 star systems within ~70 pc of Earth as newly identified members of nearby young stellar kinematic groups; these identifications include the first A- and late-B type members of the AB Doradus moving group and field Argus Association. All but one of the 35 systems contain a bright solar- or earlier-type star that should ...

We propose 35 star systems within ~70 pc of Earth as newly identified members of nearby young stellar kinematic groups; these identifications include the first A- and late-B-type members of the AB Doradus moving group and field Argus Association. All but one of the 35 systems contain a bright solar- or earlier-type star that should ...

We present results from our continuing program to identify new, low-mass, late spectral type members of the nearby young moving groups (NYMGs) using a proper motion selection algorithm and various observational techniques. We have three goals: 1) To provide high priority targets for exoplanet searches by direct imaging, 2) To complete the census of the membership in the NYMGs ...

We present results from our continuing program to identify new, low-mass, members of the nearby young moving groups (NYMGs) using a proper motion selection algorithm and various observational techniques. We have three goals: (1) to provide high priority targets for exoplanet searches by direct imaging, (2) to complete the census of the membership in the NYMGs down to ...

We present results from our continuing program to identify new, low-mass, members of the nearby young moving groups (NYMGs) using a proper motion selection algorithm and various observational techniques. We have three goals: (1) to provide high priority targets for exoplanet searches by direct imaging, (2) to complete the census of the membership in the NYMGs down to ~0.1 M ...

Young nearby associations provide a crucial sample of stars for studying the local star formation history, investigating the early phases of planet formation, and searching for exoplanets through direct imaging. While numerous new associations have been identified in the last decade, their members are mostly restricted to relatively massive F, G and K stars. Through a novel statistical analysis, ...

We estimate cluster ages from lithium depletion in five pre-main-sequence groups found within 100 pc of the Sun: the TW Hydrae association, ? Chamaeleontis cluster, ? Pictoris moving group, Tucanae-Horologium association, and AB Doradus moving group. We determine surface gravities, effective temperatures, and ...

Young stars free of the obscuring effects of their formation region exist in the Solar neighborhood as members of co-moving, coeval groups known as nearby young moving groups (NYMGs). Since identification of new members has relied on magnitude limited surveys, NYMGs are mostly F, G, and K type stars, with only the nearest M type members being represented. ...

of the light curve. In Figure 1 we present spectra corresponding to the period of quiescence, the rising phase the quiescent spectrum from the flare spectra (i.e., used it as a background spectrum) for this display/peak spectrum, moderate in the decay spectrum and weak in the quiescent spectrum. A time profile of the counts

Also known as the Tarantula Nebula, 30 Doradus is an extraordinary sight. But what of its name? To answer this question, one may begin by answering the question, "What is 29 Doradus?"

Feb 1, 2005 ... 30 Doradus is lit up like a Christmas tree. Shining in light across the electromagnetic spectrum, 30 Doradus glows because of all the ...

The active late-type star AB Doradus was observed in February 1996 with the Goddard High Resolution Spectrograph of the Hubble Space Telescope using the low resolution G140L grating. The observations covered one half of the star's rotation cycle (P = 0.514 d) with 11.5 min time resolution. The strong coronal FeXXI lambda 1354.094 line formed at 107 K was ...

The pre-main sequence (PMS) star AB Dor A is the main component of the quadruple system AB Doradus. The precise determination of the mass and photometry of the close companion to AB Dor A, AB Dor C, has provided an important benchmark for calibration of theoretical evolutionary models of ...

AB Dor is a young, 30-Myr-old, low-mass star with a short rotation period and strong flaring activity. In this work, a detailed analysis of the flaring activity is carried out based on ultraviolet spectral tracers of hot (T ~105 ) plasma, namely HST /GHRS profiles of the Civ[uv1] and Siiv[uv1] lines. The quiescent component has been subtracted out and the spectral signature of ...

During the Astro-1 mission, near- and far-UV images of the 30 Doradus region were obtained using the

We perform a numerical simulation of the corona of the young, rapidly rotating K0 dwarf AB Doradus using a global magnetohydrodynamic (MHD) model. The model is driven by a surface map of the radial magnetic field constructed using Zeeman-Doppler Imaging. We find that the global structure of the stellar corona is dominated by strong azimuthal tangling of ...

We report on some preliminary results of the analysis of AB Doradus light curves in the time interval between 1979 and 1997. The maximum brightness of the star has been decreasing almost linearly from 1979 to 1989 and increasing always since, although with a less steep slope. The total time employed by the star to perform this variation is between 18.5 and ...

to zero longitude shift. Figure 3 shows how the value of this peak varies with latitude for each dataset at latitudes below 60 ffi . Above this latitude, the potential field fails to reproduce the almost the equatorial regions to above 60 ffi latitude). The presence of large slingshot prominences trapped at be

... this capability. Air drop riggers were moved from Balad AB Iraq to Al Udeid AB, Qatar so they ... By rigging in Qatar, the C-17's can airdrop ...

Jul 6, 2010 ... You are here: AB Home � Articles � Oxygen Moves from Enceladus to Titan. About Astrobiology � Funding Opportunities � Focus Groups ...

Observatories Moved to GSFC (move went very smoothly). Acoustics Testing. A/B Clamp band shock test and deployment sequence (again) ...

We present an extension of the spectral deconvolution (SD) method to achieve very high contrast at small inner working radii. We apply the method to the specific case of ground-based adaptive optics fed integral field spectroscopy (without a coronagraph). Utilizing the wavelength dependence of the Airy and speckle patterns, we make an accurate estimate of the point spread function that can be ...

In this paper, we present new brightness and magnetic surface images of the young K0 dwarfs AB Doradus and LQ Hydrae, and of the K1 subgiant of the RS CVn system HR 1099 (=V711 Tauri), reconstructed from Zeeman-Doppler imaging spectropolarimetric observations collected at the Anglo-Australian Telescope during five observing campaigns (totalling 50 nights), ...

The linear stability of a moving first-order phase boundary in the presence of hypercooling and anisotropy is investigated. Applying the results to the A-B transition leads us to conclude that in the temperature regime already explored experimentally the moving planar interface should be linearly stable; we also find that a new ...

The AB field guide is moving along with the hopes of being completed next year. o 06 Santander Summer School July 2006. o Rose Grymes: This year the NAI and ...

a wave moving at speed AB AB AB kk v - - = �� . The rate at which vehicles pass this wave, �AB, can Cumulative Number of Vehicles TimeTime Time Time B (t)C D (t)AD (t)A tAB tABtBC (b) (d)(c) (a) D '(t)A D '(t the time and distance that vehicles spend in a queue ...

The magnetic signals emitted by a moving A-B interface are calculated using the spin hydrodynamic theory and the general boundary conditions at the A-B interface. Most experimental observations are well accounted for. The authors especially find the following behavior for the excess magnetization: (i) It vanishes if the interface ...

We present here preliminary results concerning 32 stars identified as main ? Doradus candidates by the COROT Variable Classifier (CVC) among the 4 first fields of the exoplanet CCDs.

The unexplained long-term variability of the light of the brightest nonexplosive stars known, namely

The 30 Doradus Nebula is in the Large Magellanic Cloud, a satellite galaxy ... Several color filters enhance important details in the stars and the nebula. ...

Ultraviolet Imaging Telescope (UIT) UV magnitudes in four bands, together with optical B magnitudes,

An approach is developed to enhance sampling for ab initio Monte Carlo and ab initio path integral Monte Carlo calculations of molecular clusters by utilizing an approximate potential as a guide to move in the configuration space more efficiently. The interpolated potential energy obtained by the moving ...

We have carried out a photometric survey of a complete, volume-limited sample of ? Doradus candidates. The sample was extracted from the Hipparcos catalog and consists of 114 stars with colors and absolute magnitudes within the range of known ? Doradus stars and that also lie within a specified volume of 266,600 pc3. We devoted one year of observing time ...

This paper describes all algorithm for simulating soft shadows at interactive rates using graphics hardware. On current graphics workstations, the technique can calculate the soft shadows cast by moving, complex objects onto multiple planar surfaces in ab...

At the iteration planning meeting this item was determined to be a low priority and per the meeting, I am moving it down. Setting to abs priority 500.

Apr 30, 2008 ... The competition was fierce! Of 37 posters representing the full gamut of astrobiology research areas, six finalists moved into second round ...

The ab initio computational approach of distributed response analysis is used to quantify how electrons move across conjugated molecules in an electric field, in analogy to conduction. The method promises to be valuable for characterizing the conductive behavior of single molecules in electronic devices.

stations moving at vehicular speeds .... From the standard, the MATLAB code required to generate ... all(abs(ofdm_symbol-TxSignal(29:229))

An expression is derived for the dipole moment mu, associated with an arbitrary adatom on an arbitrary metal surface, in terms of the differential work done in moving the adatom from the interior of the metal to its actual position in the presence and abs...

We use high-resolution N-body/smoothed particle hydrodynamics (SPH) simulations to study the hydrodynamical interaction between the Large Magellanic Cloud (LMC) and the hot halo of the Milky Way. We investigate whether ram pressure acting on the satellite's interstellar medium can explain the peculiarities observed in the HI distribution and the location of the recent star formation activity. Due ...

3 cell . [ 1] C1={2,5,3}, C2={4,7,1}, C3={6,8,9} . [ 2] tree . . , {A,B . S cell , 3 {1,6,8}, {3,2,5}, {7,4,9}. [ 3] K-means , R( 1) A, B, C 3 ( 2), A, B, C x [ 1] Temp_Cost = a,b , 2* Moves (a,b) * ( - 1). , a Ui cell, b Ui cell, k

The moving A-B interface emits second sound which extracts the latent heat from the transition region. The amplitude is calculated for all interface velocities u. A pronounced maximum is found if u is close to the second sound velocity.

Jul 16, 2008 ... This function is used for measuring performance. ..... first line is init robot pose (pad zeros to be Matlab-friendly) 00454 fprintf(path_fout, "%d, ..... 00168 if(abs(dy) > abs(dx)) { // if it's on vertical sides 00169 y_temp ..... the vehicle region; other regions can be moved as well, if desired. ...

VLT Finds Young, Very Low Mass Objects Are Twice As Heavy As Predicted Summary Thanks to the powerful new high-contrast camera installed at the Very Large Telescope, photos have been obtained of a low-mass companion very close to a star. This has allowed astronomers to measure directly the mass of a young, very low mass object for the first time. The object, more than 100 times fainter than its ...

Several coupling methods for binding antibodies (Ab) to liposomes have previously been developed. We were interested in examining if some of these methods would be suitable for attaching Ab to long-circulating formulations of liposomes (SL), sterically stabilized with poly(ethylene glycol) (PEG). We studied three 'classical' coupling methods in which ...

A model for the angular momentum transfer within the convection zone of a rapidly rotating star is introduced and applied to the analysis of recent observations of temporal fluctuations of the differential rotation on the young late-type stars AB Doradus (AB Dor) and LQ Hydrae (LQ Hya). Under the hypothesis that the mean magnetic field ...

Mass is the most fundamental parameter of a star, yet it is also one of the most difficult to measure directly. In general, astronomers estimate stellar masses by determining the luminosity and using the 'mass-luminosity' relationship, but this relationship has never been accurately calibrated for young, low-mass stars and brown dwarfs. Masses for these low-mass objects are therefore constrained ...

We present recent multi-color differential photometry taken with the Vanderbilt University / Tennessee State University 0.4 meter Automatic Photoelectric Telescope of three suspected gamma Doradus-type variable stars, HD 32537, HD 152569, and HD 165645. Based on the time-scales and amplitudes of variations deduced from Fourier analysis, we conclude that each of these objects ...

Optically active media have the helical and dissymmetric crystal structure, which constrains the motions of the electrons to a helical path under the influence of the incident electric field. The charge flow along the helices induces a magnetic field in the direction of the axis of helices. The helical structure hence acts as natural micro-solenoids for the electromagnetic waves passing through ...

Sep 30, 1999 ... Explanation: This gorgeous visible-light Hubble Space Telescope image shows a young cluster of massive stars at the center of the 30 Doradus ...

Mar 28, 2000 ... NGC 2080, nicknamed "The Ghost Head Nebula," is one of a chain of star-forming regions lying south of the 30 Doradus nebula in the Large ...

Oct 1, 1999 ... Explanation: Compare these matched Hubble Space Telescope views (visible-light on top; infrared on bottom) of a region in the star-forming ...

estimated are of additional interest: 30 Doradus (the Tarantula Nebula), the Crab. Nebula, Jupiter, and two small clusters discovered by Celescope. ...

Dec 11, 2008 ... Enormous stars in 30 Doradus, also known as the Tarantula Nebula, are producing intense radiation and searing winds of multimillion-degree ...

Jul 1, 2003 ... The image above captures an image of extremely hot gas in one location of the LMC, the Tarantula Nebula, also known as the 30 Doradus Nebula ...

... Accession Number : ADA492120. Title : Far Ultraviolet Spectroscopic Explorer Spectroscopy of the Nova-Like Cataclysmic Variable BB Doradus. ...

Mar 18, 2002 ... One of the best places to study these phenomena is 30 Doradus, the so-called " Tarantula Nebula" in the Large Magellanic Cloud (a companion ...

... cast shadows on the nighttime landscape of Earth. 30 Doradus is located in the constellation Dorado, the swordfish. HST astronomers studying the WF/PC ...

We have observed the southern active cool stars HD 32918 (K1 IIIp), HD 82558 (K2 V), BD-22�3467 (G8 III), AB Doradus (HD 36705, K1 IV) and Rst 137 B (M 3-5), each of which lies close to the chromospheric- coronal saturation limit. The fractional H?-luminosities LH?/Lbol of the stars were close to 10-4. No significant radial velocity variations were ...

Explanations for the attentional blink (AB; a deficit in identifying the second of two targets when presented 200-500ms after the first) have recently shifted from limitations in memory consolidation to disruptions in cognitive control. With a new model based on the threaded cognition theory of multi-tasking we propose a different explanation: the AB is ...

We introduce the spectroscopic multi-site campaigns that are organised for a sample of slowly pulsating B and ? Doradus stars to make a big step forward in the asteroseismic studies of these main-sequence g-mode pulsators.

The authors are carrying out a program to study the star-formation history of the 30 Doradus super-association in the LMC. Here they report the preliminary results of UBV photometry of the central cluster of the Tarantula nebula, NGC 2070. The principal result presented, is the discovery of a reddening component, which implies the presence of dust still associated with the ...

Classification spectrograms and short-exposure photographs of the central objects in the giant H II regions NGC 3603 and 30 Doradus are illustrated and discussed. The NGC 3603 object is shown to be a very luminous Trapeziurn- like system including a Wolf--Rayet component. Because of the spectroscopic similarities, it is suggested that the 30 Dor object may also be ...

We report maps of the 158 micron (C II) line, the 63 micron and 146 micron (C I) lines, the 2.2 micron Br gamma line, and the 2.6 mm CO (1-0) line toward the 30 Doradus complex in the Large Magellanic Cloud. The maps of all tracers emphasize the shell-lik...

MAD Science Demonstration Proposal R136: The young massive star cluster at the core of 30 Doradus. Walborn STScI walborn@stsci.edu H. Zinnecker AIP hzinnecker@aip.de Abstract: We propose MAD J, H, Ks poorly understood. In a relatively short period of time (few Myrs) a complicated mixture of various

We propose a pulsation driving mechanism for {gamma} Doradus variable stars. This mechanism requires that the local convective timescale at the base of the envelope convection zone be comparable to or longer than the pulsation period. This mechanism explains both the red and blue edges of the {gamma} Dor instability strip. We predict that some cadidate {gamma} Dor stars ...

An approach for ab initio synthesis of the thin lens structure of linearly compensated zoom lenses is reported. This method uses evolutionary programming that explores the available configuration space formed by powers of the individual components, the intercomponent separations, and the relative movement parameters of the moving components. Useful thin ...