Gravitational radiation from gamma-ray burst progenitors

Shiho Kobayashi, Peter Mészáros

Research output: Contribution to journalArticle

94 Scopus citations

Abstract

We study gravitational radiation from various proposed gamma-ray burst (GRB) progenitor models, in particular compact mergers and massive stellar collapses. These models have in common a high angular rotation rate, and the final stage involves a rotating black hole and accretion disk system. We consider the inspiral, merger, and ringing phases, and for massive collapses, we consider the possible effects of asymmetric collapse and break up, as well as bar-mode instabilities in the disks. We evaluate the orders of magnitude of the strain and frequency of the gravitational waves expected from various progenitors, at distances based on occurrence rate estimates. Based on simplifying assumptions, we give estimates of the probability of detection of gravitational waves by the advanced LIGO system from the different GRB scenarios.

Original languageEnglish (US)
Pages (from-to)861-870
Number of pages10
JournalAstrophysical Journal
Volume589
Issue number2 I
DOIs
StatePublished - Jun 1 2003

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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