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A new constraint for gamma-ray burst progenitor mass

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Author

Summary, in English

Recent comparative observations of long-duration gamma-ray bursts (LGRBs) and core collapse supernova (cc SN) host galaxies demonstrate that these two, highly energetic transient events are distributed very differently upon their hosts. LGRBs are much more concentrated on their host galaxy light than cc SN. Here we explore the suggestion that this differing distribution reflects different progenitor masses for LGRBs and cc SN. Using a simple model we show that, assuming cc SN arise from stars with main-sequence masses > 8 M-circle dot, GRBs are likely to arise from stars with initial masses > 20 M-circle dot. This difference can naturally be explained by the requirement that stars which create a LGRB must also create a black hole.

Publishing year

2007

Language

English

Pages

1285-1290

Publication/Series

Monthly Notices of the Royal Astronomical Society

Volume

376

Issue

3

Document type

Journal article

Publisher

Oxford University Press

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • supernovae : general
  • gamma-rays : bursts

Status

Published

Research group

  • Observational and Theoretical Astrophysics

ISBN/ISSN/Other

  • ISSN: 1365-2966