Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-11-10
Astrophys.Space Sci. 265 (1999) 263-264
Astronomy and Astrophysics
Astrophysics
2 pages, LaTeX, 1 figure, uses crckapb.sty. To appear in the Proceedings of "Galaxy Evolution: Connecting the Distant Universe
Scientific paper
10.1023/A:1002195323707
The comprehensive knowledge of fundamental parameters of single stars is the basis of the modelling of star clusters and galaxies. Most fundamental stellar parameters of the individual components in SB2 eclipsing binaries are known with very high accuracy. Unfortunately, while masses and radii are well determined, the temperatures strongly depend on photometric calibrations. In the present work, we have used an empirically-calibrated grid of theoretical stellar spectra (BaSeL models) for simultaneously deriving homogeneous effective temperatures and metallicities from observed data. For this purpose, we have selected 20 binary systems (40 stars) for which we have uvby Stromgren photometry with estimated errors (see Lastennet et al., astro-ph/9811103, for details).
Buser Roland
Lastennet Erwan
Lejeune Th.
Westera Pieter
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