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On the Expected Frequency of WR + Compact Star Systems

Published online by Cambridge University Press:  14 August 2015

D. Vanbeveren  and
C. de Loore
D. Vanbeveren
Affiliation:
Astrophysical Institute, Vrije Universiteit Brussel, Brussels, Belgium
C. de Loore
Affiliation:
Astrophysical Institute, Vrije Universiteit Brussel, Brussels, Belgium

Extract

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According to the classical evolutionary scenario for massive close binariesit is qenerally assumed that two WR phases are encountered, i.e. a WR+OB stage and a WR + compact star stage. The survival probability of a massive binary after an instantaneous supernova (SN) explosion critically depends on the assumed asymmetry of the SN explosion, i.e. on the “kick” velocity Vk (Sutantyo, 1978). The purpose of this paper is to make a statistical study on the expected WR + compact star binaries compared to the WR+OB type binaries based on non-conservative massive binary evolution, as a function of Vk which, as we will see, is very poorly known for these types of stars.

Type
SESSION 5 — EVOLUTIONARY STATUS OF WOLF-RAYET STARS
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 365 - 369
Copyright
Copyright © Reidel 1982 

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