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Secular Evolution of Cataclysmic Variables with Irradiation-Induced Mass Transfer

Published online by Cambridge University Press:  12 April 2016

H. Ritter ,
Z. Zhang  and
J. M. Hameury
H. Ritter
Affiliation:
MPI für Astrophysik, D-85748 Garching, Germany
Z. Zhang
Affiliation:
MPI für Astrophysik, D-85748 Garching, Germany
J. M. Hameury
Affiliation:
Observatoire de Strasbourg, F-6700 Strasbourg, France

Extract

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The possible importance of the reaction of a low-mass star to external irradiation for the long-term evolution of compact binaries has been noted only rather recently; first in the context of the evolution of low-mass X-ray binaries (e.g. Podsiadlowski 1991; Harpaz & Rappaport 1991; Frank, King & Lasota 1992; Hameury et al. 1993) and subsequently by Ritter, Zhang & Kolb (1995a,b, hereafter RZK) also for the evolution of cataclysmic variables (CVs). Based on a simple model for describing the reaction of a low-mass star to irradiation RZK showed that CVs can be dynamically unstable against irradiation-induced mass transfer and that, as a consequence of this, mass transfer could occur via cycles in which phases of high, irradiation-enhanced mass transfer alternate with phases of little or no mass transfer. The occurrence of such mass transfer cycles in CVs was subsequently discussed from a more general point of view by King (1995) and King et al. (1995). Whereas the possibility of mass transfer cycles in CVs is now fully recognised, the question as to which systems can undergo such cycles and which cannot has not yet been addressed in detail. It is the purpose of this contribution to provide at least a partial answer to this question.

Type
Post Common Envelope Binaries & Evolution
Information
International Astronomical Union Colloquium , Volume 158: Cataclysmic Variables and Related Objects , 1996 , pp. 449 - 452
Copyright
Copyright © Kluwer 1996

References

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