Statistical properties of the <Emphasis Type="Italic">GALEX</Emphasis> spectroscopic stellar sample |
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| Authors: | Emanuele Bertone Miguel Chavez |
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| Institution: | 1.Instituto Nacional de Astrofísica,óptica y Electrónica,Tonantzintla,Mexico |
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| 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
eff≲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. |
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