2001/10/23 by E. Lastennet, Lastennet, E., F. Cuisinier +4
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0110506
To appear in ASP Conference Series, proceedings of ``Observed HR diagrams and stellar evolution: the interplay between observational constraints and theory'' (Coimbra, Portugal, June 2001), eds., T. Lejeune & J. Fernandes
arxiv created 2001/10/23 · openalex publication_date 2001/10/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Double-lined spectroscopic binaries which are also eclipsing provide the most\naccurate stellar data, and are consequently of first importance to improve\nstellar evolution modelling. While the mass and radius of each component of\ndetached eclipsing binaries (EBs) can be accurately known, their temperature\nTeff and chemical composition ([Fe/H]) are still uncertain. To contribute to\novercome these difficulties, we present metallicity-dependent Teff\ndeterminations of 11 EBs (22 individual stars) from Stromgren synthetic\nphotometry. Inconsistencies suggesting new photometric observations are\ndiscussed. Moreover, by exploring the best chi2-fits to the photometric data,\nwe have re-derived their reddening.\n