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Gamma-ray bursts, supernova kicks, and gravitational radiation

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journal contribution
posted on 24.10.2012, 09:09 by Melvyn B. Davies, Andrew King, Stephan Rosswog, Graham Wynn
We suggest that the collapsing core of a massive rotating star may fragment to produce two or more compact objects. Their coalescence under gravitational radiation gives the resulting black hole or neutron star a significant kick velocity, which may explain those observed in pulsars. A gamma-ray burst can result only when this kick is small. Thus, only a small fraction of core-collapse supernovae produce gamma-ray bursts. The burst may be delayed significantly (hours to days) after the supernova, as suggested by recent observations. If our picture is correct, core-collapse supernovae should be significant sources of gravitational radiation with a chirp signal similar to a coalescing neutron star binary.

History

Citation

Astrophysical Journal Letters, 2002, 579 (2), L63-L66

Version

VoR (Version of Record)

Published in

Astrophysical Journal Letters

Publisher

IOP Publishing

issn

2041-8205

eissn

2041-8213

Copyright date

2002

Available date

24/10/2012

Publisher version

http://iopscience.iop.org/1538-4357/579/2/L63/

Language

en

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