Spectroscopic survey of youngest field stars (Guillout+, 2009)

Details Spectroscopic survey of youngest field stars (Guillout+, 2009) Spectroscopic survey of youngest field stars (Guillout+, 2009)

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ycat..35040829g&link_type=abstract

VizieR On-line Data Catalog: J/A+A/504/829. Originally published in: 2009A&A...504..829G

Physics

Stars: Nearby, Stars: Pre-Main Sequence, X-Ray Sources, Radial Velocities

Scientific paper

We present the first results of an ambitious ground-based observation programme conducted on 1-4m class telescopes. Our sample consists of 1097 active and presumably young stars, all of them being optical (Tycho Catalogue) counterparts of ROSAT All- Sky Survey X-ray sources in the northern hemisphere. In this paper, we concentrate on the optically brightest (VT<=9.5m) candidates (704 objects).We acquired high-resolution optical spectroscopy in the Hα and/or lithium spectral regions for 426 of such stars without relevant data in the literature. We describe the star sample and the observations and we start to discuss the physical properties of the investigated stars.
(6 data files).

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