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The Evolution of a Contact Binary

Published online by Cambridge University Press:  12 April 2016

J. Hazlehurst  and
E. Meyer-Hofmeister

Extract

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Test calculations have been made to study the effects of central hydrogen depletion, luminosity exchange and mass exchange on the evolution of a contact binary. The Munich Henyey programme was adapted to allow the study of both components in a time-dependent way.

The first model considered was that of LUCY (Ap. J. 151, 1126) in which entropy is assumed to be at all times uniform throughout the adiabatic portion of a common convective envelope. This model was found to be unstable, in the sense that mass flows from the primary to the secondary in a time short compared with the nuclear time-scale.

Type
IV. Duplicity and its Consequences among the Intrinsic Variable Stars
Information
International Astronomical Union Colloquium , Volume 15: New Directions and Frontiers in Variable Stars Research , 1971 , pp. 289
Copyright
Copyright © Cambridge University Press 1971