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Gamma-Ray Bursts, Supernova Kicks, and Gravitational Radiation

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Author

Summary, in English

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.

Publishing year

2002

Language

English

Pages

63-69

Publication/Series

Astrophysical Journal Letters

Volume

579

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • Gravitational Waves
  • Gamma Rays: Bursts
  • Stars: Binaries: Close
  • Accretion Disks
  • Accretion
  • Stars: Neutron
  • Stars: Supernovae: General

Status

Published

ISBN/ISSN/Other

  • ISSN: 2041-8213