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Title

Accretion induced collapse of white dwarfs in binary systems and their observational properties

Author(s)

Wickramasinghe, Dayal;  Hurley, Jarrod R.;  Ferrario, Lilia;  Tout, Christopher A.;  Kiel, Paul D.

Abstract

Neutron stars can form through core collapse (CC) following a supernova explosion of a massive star, or from a white dwarf that first forms in a binary system and then collapses into a neutron star via accretion induced collapse (AIC). So far, there have been no unambiguous identifications of AIC neutron stars in our Galaxy, although it has been suspected that they may exist among the population of binary millisecond pulsars (BMSPs). We summarise results of new calculations on the expected birth rates of binary systems with AIC neutron stars and discuss the predicted orbital period of systems with He, CO and O-Ne-Mg white dwarfs and main sequence companions. We argue that AIC systems may make an important contribution to the observed population of BMSPs.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing

Source

Journal of Physics conference series: Proceedings of the 16th European White Dwarfs Workshop, Barcelona, Spain, 30 June-04 July 2008, Vol. 172 (2009), article no. 012037

Publication year

2009

Keyword(s)

Accretion induced collapse;  Binary millisecond pulsars;  Neutron stars

Publisher

Institute of Physics Publishing

ISSN

1742-6588

Publisher URL

http://dx.doi.org/10.1088/1742-6596/172/1/012037

Copyright

Copyright © 2009 IOP Publishing Ltd. Published version of the paper reproduced here in accordance with the copyright policy of the publisher. This is an Open Access article which permits the author unrestricted use, distribution, and reproduction for non-commercial purposes, provided the original work is properly cited.

Full text

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