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Related papers: A GALEX based search for the sparse young stellar …

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We analyze 359 ultraviolet tiles from the All Sky Imaging Survey of the space mission GALEX covering roughly 400 square degrees toward the Orion star-forming region. There is a total of 1,555,174 ultraviolet sources that were cross-matched…

Solar and Stellar Astrophysics · Physics 2014-12-03 Nestor Sanchez , Ana Ines Gomez de Castro , Fatima Lopez-Martinez , Javier Lopez-Santiago

We have carried out a Galaxy Evolution Explorer (GALEX) Cycle 1 guest investigator program covering 56 square degrees near the Taurus T association and 12 square degrees along the northern edge of the Upper Scorpius OB association. We…

Solar and Stellar Astrophysics · Physics 2026-03-23 Krzysztof Findeisen , Lynne Hillenbrand

Aims: We search new T Tauri star (TTS) candidates with the mid-infrared (MIR) part of the AKARI All-Sky Survey at 9 and 18 um wavelengths. Methods: We used the point source catalogue (PSC), obtained by the Infrared Camera (IRC) on board…

Solar and Stellar Astrophysics · Physics 2015-05-19 Satoshi Takita , Hirokazu Kataza , Yoshimi Kitamura , Daisuke Ishihara , Yoshifusa Ita , Shinki Oyabu , Munetaka Ueno

In this work, we examine the list of 63 candidates to T Tauri star (TTS) in the TAMC identified by their ultraviolet (UV) and infrared colours (IR) measured from data obtained by the Galaxy Evolution Explorer all sky survey (GALEX-AIS) and…

With the third data release of the Gaia mission $Gaia$ DR3 with its precise photometry and astrometry, it is now possible to study the behaviour of stars at a scale never seen before. In this paper, we developed new criteria to identify…

The Taurus Molecular Cloud subtends a large solid angle on the sky, in excess of 250 square degrees. The search for legitimate Taurus members to date has been limited by sky coverage as well as the challenge of distinguishing members from…

The census of young moving groups in the solar neighborhood is significantly incomplete in the low-mass regime. We have developed a new selection process to find these missing members based on the GALEX All-Sky Imaging Survey. For stars…

Solar and Stellar Astrophysics · Physics 2015-05-20 Evgenya L. Shkolnik , Michael C. Liu , Iain Neill Reid , Trent Dupuy , Alycia Weinberger

We present the selection and classification of over a thousand ultraviolet (UV) variable sources discovered in ~ 40 deg^2 of GALEX Time Domain Survey (TDS) NUV images observed with a cadence of 2 days and a baseline of observations of ~ 3…

We report on the properties of pre-main-sequence objects in the Taurus molecular clouds as observed in 7 mid- and far-infrared bands with the Spitzer Space Telescope. There are 215 previously-identified members of the Taurus star-forming…

We describe a method that exploits data from the GALEX ultraviolet and WISE and 2MASS infrared source catalogs, combined with proper motions and empirical pre-main sequence isochrones, to identify candidate nearby, young, low-mass stars.…

Solar and Stellar Astrophysics · Physics 2015-06-16 David R. Rodriguez , B. Zuckerman , Joel H. Kastner , M. S. Bessel , Jacqueline K. Faherty , Simon J. Murphy

In a recent study, individual parallaxes were determined for many stars of the Taurus-Auriga T association that are members of the same moving group. We use these new parallaxes to re-address the issue of the relationship between classical…

Astrophysics · Physics 2009-11-13 C. Bertout , L. Siess , S. Cabrit

We present results of intermediate resolution spectroscopy of 131 optical counterparts to 115 ROSAT All-Sky Survey X-ray sources south of the Taurus-Auriga dark cloud complex. These objects have been selected as candidate young stars from a…

Astrophysics · Physics 2009-10-28 A. Magazzu , E. L. Martin , M. F. Sterzik , R. Neuhaeuser , E. Covino , J. M. Alcala

We present results from simultaneous FUV and NUV observations of T-Tauri stars (TTSs) in the Taurus molecular cloud with UVIT/AstroSat. This is the very first UVIT study of TTSs. From the spectral energy distribution of TTSs from FUV to…

Solar and Stellar Astrophysics · Physics 2024-06-18 Prasanta K. Nayak , Mayank Narang , P. Manoj , Uma Gorti , Annapurni Subramaniam , Nayana George , Chayan Mondal

We report on intriguing photometric properties of Galactic stars observed in the GALEX satellite's far-UV and near-UV bandbasses as well as from the SDSS survey and the Kepler Input Catalog. First, the FUV-NUV color distribution of stars in…

Solar and Stellar Astrophysics · Physics 2015-06-19 Myron Smith , Luciana Bianchi , Bernard Shiao

We present the results of a search for new members of the Taurus star-forming region using data from the Spitzer Space Telescope and the XMM-Newton Observatory. We have obtained optical and near-infrared spectra of 44 sources that exhibit…

Astrophysics of Galaxies · Physics 2014-11-20 K. L. Luhman , E. E. Mamajek , P. R. Allen , K. L. Cruz

We assembled a catalogue of bright, hot subdwarf and white dwarf stars extracted from a joint ultraviolet, optical, and infrared source list. The selection is secured using colour criteria that correlate well with effective temperatures…

Solar and Stellar Astrophysics · Physics 2015-05-19 S. Vennes , A. Kawka , P. Nemeth

Previous studies have found that ~1 deg2 fields surrounding the stellar aggregates in the Taurus star-forming region exhibit a surplus of solar-mass stars relative to denser clusters like IC~348 and the Orion Nebula Cluster. To test whether…

Astrophysics of Galaxies · Physics 2017-01-11 K. L. Luhman , E. E. Mamajek , S. J. Shukla , N. P. Loutrel

The paper presents an analysis of homogeneous long-term photometric observations of 28 well-known weak-line T Tauri stars (WTTS) and 60 WTTS candidates detected by the ROSAT observatory in the direction of the Taurus-Auriga star-forming…

Solar and Stellar Astrophysics · Physics 2015-06-15 K. N. Grankin

We describe a new method to identify young, late-type stars within ~150 pc of the Earth that employs visual or near-infrared data and the GALEX GR4/5 database. For spectral types later than K5, we demonstrate that the ratio of GALEX…

Solar and Stellar Astrophysics · Physics 2011-02-02 David R. Rodriguez , M. S. Bessell , B. Zuckerman , Joel H. Kastner

Using the Spitzer Space Telescope, we have observed 90 weak-line and classical T Tauri stars in the vicinity of the Ophiuchus, Lupus, Chamaeleon, and Taurus star-forming regions as part of the Cores to Disks (c2d) Spitzer Legacy project. In…

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