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Contact Binaries

Published online by Cambridge University Press:  14 August 2015

J. Hazlehurst
J. Hazlehurst*
Affiliation:
Hamburger Sternwarte, Hamburg, West Germany

Abstract

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Observational statements about close and contact binaries are compared with the theoretical consequences of assuming that contact binaries have a common convective envelope. It is concluded that such contact systems cannot be in thermal equilibrium, and that the inefficiency of convective heat transport in the common envelope must be allowed for. Even so, current theory seems to predict about equal numbers of contact and semidetached systems of short period, in conflict with the observations.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 73: Structure and Evolution of Close Binary Systems , 1976 , pp. 323 - 327
Copyright
Copyright © Reidel 1976 

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