Atmospheric parameters for non-interacting eclipsing binaries: preliminary results from synthetic photometry

Details Atmospheric parameters for non-interacting eclipsing binaries: preliminary results from synthetic photometry Atmospheric parameters for non-interacting eclipsing binaries: preliminary results from synthetic photometry

2001-10-23

arxiv.org/abs/astro-ph/0110506v1

Astronomy and Astrophysics

Astrophysics

To appear in ASP Conference Series, proceedings of ``Observed HR diagrams and stellar evolution: the interplay between observa

Scientific paper

Double-lined spectroscopic binaries which are also eclipsing provide the most accurate stellar data, and are consequently of first importance to improve stellar evolution modelling. While the mass and radius of each component of detached eclipsing binaries (EBs) can be accurately known, their temperature Teff and chemical composition ([Fe/H]) are still uncertain. To contribute to overcome these difficulties, we present metallicity-dependent Teff determinations of 11 EBs (22 individual stars) from Stromgren synthetic photometry. Inconsistencies suggesting new photometric observations are discussed. Moreover, by exploring the best chi^2-fits to the photometric data, we have re-derived their reddening.

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