The mass dependence of the overshooting parameter determined from eclipsing binary data

Details The mass dependence of the overshooting parameter determined from eclipsing binary data The mass dependence of the overshooting parameter determined from eclipsing binary data

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.318l..55r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 318, Issue 4, pp. L55-L59.

Astronomy and Astrophysics

Astronomy

59

Convection, Stars: Abundances, Binaries: Eclipsing, Stars: Early-Type, Stars: Evolution, Stars: Interiors

Scientific paper

High-precision data on absolute dimensions of evolved eclipsing binaries have been used for a quantitative evaluation of the significance of convective overshoot in the stellar core. Eight detached double-lined eclipsing binaries with components close to or beyond the terminal age main sequence (TAMS) and masses between 2 and 12Msolar have been compared with evolutionary models using different overshooting parameters. The results are robust and indicate a systematic increase of the amount of convective overshoot with the stellar mass. Such determination constitutes a fundamental point for stellar structure and evolution theory.

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