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Probing high-mass stellar evolutionary models with binary stars

Published online by Cambridge University Press:  23 January 2015

A. Tkachenko
A. Tkachenko*
Affiliation:
Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium email: Andrew.Tkachenko@ster.kuleuven.be
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Abstract

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Mass discrepancy is one of the problems that is pending a solution in (massive) binary star research field. The problem is often solved by introducing an additional near core mixing into evolutionary models, which brings theoretical masses of individual stellar components into an agreement with the dynamical ones. In the present study, we perform a detailed analysis of two massive binary systems, V380 Cyg and σ Sco, to provide an independent, asteroseismic measurement of the overshoot parameter, and to test state-of-the-art stellar evolution models.

Keywords

asteroseismologystar: oscillations (including pulsations)line: profilesmethods: data analysistechniques: photometrictechniques: spectroscopic(stars:) binaries: spectroscopicstars: fundamental parametersstars: individual (V380 Cyg, σ Sco)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 200 - 205
Copyright
Copyright © International Astronomical Union 2015 

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