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The Spectral Distribution of Be/X-ray Transients Implies Supernova Kicks

Published online by Cambridge University Press:  12 April 2016

Ignacio Negueruela
Ignacio Negueruela*
Affiliation:
SAX Science Data Center, ASI, c/o Nuova Telespazio, via Corcolle 19, I00131 Rome, Italy

Abstract

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Be/X-ray binaries are generally assumed to have formed as the result of the evolution of moderately massive binaries in which mass is transferred semi-conservatively from the originally more massive component on to its companion. An alternative model proposes a binary system with a very massive component which loses a large fraction of its mass via very unconservative mass transfer. This scenario allows the formation of Be/X-ray binaries without requiring an asymmetric supernova explosion. We show that the observed properties of most Be/X-ray binaries for which an orbital solution has been found are incompatible with this model.

Type
7. Interacting Binaries
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 709 - 712
Copyright
Copyright © Astronomical Society of the Pacific 2000

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