Testing the Viewing Angle Hypothesis for Short GRBs with LIGO Events

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Abstract

It has been suggested that short gamma-ray bursts (GRBs) have shorter or undetectable spectral lags than longer GRBs because for the former, the observer's line of sight makes a larger angle with the GRB jet axis than it does for the latter. It is proposed that simultaneous gravitational-wave-short-GRB events could provide a simple test of this hypothesis. Multimessenger astronomy eventually may test whether event horizons are a necessary ingredient for GRBs.

Original languageEnglish
Article numberL32
JournalAstrophysical Journal Letters
Volume851
Issue number2
DOIs
StatePublished - 20 Dec 2017

Keywords

  • gamma rays: stars
  • gravitational waves

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