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Accretion and Chemical Structure of Algols

Published online by Cambridge University Press:  14 August 2015

Wim Packet
Wim Packet*
Affiliation:
Astrophysical Institute, Vriji Universiteit Brussel Brussels, Belgium

Abstract

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Evolutionary calculations show that during the last, slow stage of mass exchange in close binary systems, matter with gradually increasing molecular weight is transferred. If no mixing occurs the accreting star moves towards a position in the HR diagram hotter than the main-sequence band, in clear contradiction with observational evidence in Algols. So some efficient mixing mechanism must be present. Several mechanisms are examined, some of which can be definitely ruled out. A closer examination of some others is necessary.

Type
V. Algol and Algols
Information
Symposium - International Astronomical Union , Volume 88: Close Binary Stars: Observations and Interpretation , 1980 , pp. 211 - 215
Copyright
Copyright © Reidel 1980 

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