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Astrophysics and Space Science

, Volume 84, Issue 2, pp 447–456 | Cite as

Bifurcation points in close binary evolution: Medium-mass binaries

  • J. P. De Grève
Article

Abstract

The remaining core hydrogen burning lifetime after case B of mass transfer of the secondary (mass gaining) component in a medium mass close binary star is estimated, for mediummass binaries with primaries in the mass range 5M to 9M. From the comparison of this quantity with the helium burning time-scale of the remnant primary a critical mass ratioqc is derived such that for larger values ofq, mass transfer from the secondary towards the primary starts before the latter has evolved into a white dwarf. Consequences for the advanced stages of medium mass binaries are discussed.

Keywords

Burning Mass Transfer Medium Mass Bifurcation Point Critical Mass 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Co 1982

Authors and Affiliations

  • J. P. De Grève
    • 1
  1. 1.Astrophysical InstituteVrije Universiteit BrusselBelgium

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