Gamma-ray burst beaming constraints from afterglow light curves

J. E. Rhoads

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

The beaming angle ζm is the main uncertainty in gamma ray burst energy requirements today. We summarize predictions for the light curves of beamed bursts, and model the R band light curve of GRB 970508 to derive ζm ≳ 30°. This yields an irreducible minimum energy requirement of 3.4 1049 ergs to power the afterglow alone.

Original languageEnglish (US)
Pages (from-to)539-540
Number of pages2
JournalAstronomy and Astrophysics Supplement Series
Volume138
Issue number3
DOIs
StatePublished - Sep 1999

Keywords

  • Gamma-ray: bursts

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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