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Accretion-Induced Collapse of Old White Dwarfs

Published online by Cambridge University Press:  12 April 2016

J. Isern ,
R. Canal ,
M. Hernanz  and
J. Labay
J. Isern
Affiliation:
Instituto de Astrofísica de Andalucía, Granada, Spain Grup d’Astrofisica, Institut d’Estudis Catalans, Barcelona, Spain
R. Canal
Affiliation:
Instituto de Astrofísica de Andalucía, Granada, Spain Grup d’Astrofisica, Institut d’Estudis Catalans, Barcelona, Spain Departament de Física Moderna, Unversidad de Granada, Granada, Spain
M. Hernanz
Affiliation:
Grup d’Astrofisica, Institut d’Estudis Catalans, Barcelona, Spain Departament de Fisica de la Terra i del Cosmos, Universität de Barcelona, Barcelona, Spain Departament de Física, Barcelona, Spain
J. Labay
Affiliation:
Grup d’Astrofisica, Institut d’Estudis Catalans, Barcelona, Spain Departament de Fisica de la Terra i del Cosmos, Universität de Barcelona, Barcelona, Spain

Abstract

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There is observational evidence of the presence of young neutron stars in old binary systems. A likely explanation is that those neutron stars were produced in the collapse of old CO white dwarfs. We show how mass accretion on initially solid white dwarfs can leave central solid cores when dynamical instability sets in and we study the different effects of the existence of such cores on the outcome of the competition between thermonuclear explosion and gravitational collapse.

Type
VII. Related Objects
Information
International Astronomical Union Colloquium , Volume 93: Cataclysmic Variables: Recent Multi-Frequency Observations and Theoretical Developments , 1987 , pp. 665 - 669
Copyright
Copyright © Reidel 1987

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