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Algols as Limits on Binary Evolution Scenarios

Published online by Cambridge University Press:  12 April 2016

M.S. Hjellming
M.S. Hjellming*
Affiliation:
University of IllinoisDepartment of Astronomy Urbana,IL 61801

Abstract

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Evolutionary scenarios must account for Algol binaries surviving their first phase of mass transfer. The outcome of this phase is dependent upon the rapidity of the initial mass transfer, which can be estimated by calculating the radial reponse of potential progenitors to mass loss. Limits on the donor’s evolutionary state, and its companion mass, can be placed on systems which would transfer mass on a thermal or dynamical timescale. Slower mass transfer rates are necessary for the successful transition to an Algol. Considering 1.5 and 5.0 M⊙ models, the former succeed in case A and Br systems, while the latter can do so only in case A systems. To evolve into an Algol binary, all systems seem to require initial mass ratios near one.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 107: Algols , 1989 , pp. 155 - 164
Copyright
Copyright © Kluwer 1989

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