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Evolution of Intermediate Mass Close Binaries

Published online by Cambridge University Press:  14 August 2015

Th.J. Van Der Linden*
Affiliation:
Astronomical Institute, University of Amsterdam

Abstract

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Numerical simulations of close binary evolution were performed for five binary systems, using a newly developed evolutionary program. The systems have masses 3+2, 4+3.2, 6+4, 9+6, 12+8 M and periods 2d, 1d78, 3d, 4d, 5d respectively. The primary component was followed from the zero-age main sequence through the mass transfer phase to core-helium burning. Special care was given to the self-consistent determination of the mass transfer rate and the detailed treatment of composition changes. After the mass transfer phase the resulting systems consist of a main sequence star with a helium star companion of mass 0.36, 0.46, 0.82, 1.48, 2.30 M for the five systems respectively. Interesting “thermal pulses” were found in the 3+2 M system at the onset of helium burning.

Type
III. Mass Transfer and Mass Loss - Theory
Copyright
Copyright © Reidel 1980 

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