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- Title
Statistical properties of the GALEX spectroscopic stellar sample.
- Authors
Bertone, Emanuele; Chavez, Miguel
- Abstract
The GALEX General Data Release 4/5 includes 174 spectroscopic tiles, obtained from slitless grism observations, for a total of more than 60 000 ultraviolet spectra. We have determined statistical properties of the sample of GALEX stars. We have defined a suitable system of spectroscopic indices, which measure the main mid-UV features at the GALEX low spectral resolution and we have employed it to determine the atmospheric parameters of stars in the range 4500≲ T≲9000 K. Our preliminary results indicate that the majority of the sample is formed by main sequence F- and G-type stars, with metallicity [M/H]≳−1 dex.
- Subjects
STELLAR spectra; ULTRAVIOLET stars; ASTRONOMICAL spectroscopy; STELLAR atmospheres; STAR observations; DATA analysis
- Publication
Astrophysics & Space Science, 2011, Vol 335, Issue 1, p69
- ISSN
0004-640X
- Publication type
Article
- DOI
10.1007/s10509-011-0638-5