Gamma-ray burst beaming constraints from afterglow light curves

J. E. Rhoads

doi:10.1051/aas:1999343

Gamma-ray burst beaming constraints from afterglow light curves

J. E. Rhoads

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The beaming angle ζ_m 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 ζ_m ≳ 30°. This yields an irreducible minimum energy requirement of 3.4 10⁴⁹ ergs to power the afterglow alone.

Original language	English (US)
Pages (from-to)	539-540
Number of pages	2
Journal	Astronomy and Astrophysics Supplement Series
Volume	138
Issue number	3
DOIs	https://doi.org/10.1051/aas:1999343
State	Published - Sep 1999
Externally published	Yes

Keywords

Gamma-ray: bursts

ASJC Scopus subject areas

General Physics and Astronomy

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10.1051/aas:1999343

Cite this

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title = "Gamma-ray burst beaming constraints from afterglow light curves",

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.",

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author = "Rhoads, {J. E.}",

year = "1999",

month = sep,

doi = "10.1051/aas:1999343",

language = "English (US)",

volume = "138",

pages = "539--540",

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N2 - 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.

AB - 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.

KW - Gamma-ray: bursts

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U2 - 10.1051/aas:1999343

DO - 10.1051/aas:1999343

M3 - Article

AN - SCOPUS:0007335569

SN - 0365-0138

VL - 138

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EP - 540

JO - Astronomy and Astrophysics Supplement Series

JF - Astronomy and Astrophysics Supplement Series

IS - 3

ER -

Gamma-ray burst beaming constraints from afterglow light curves

Abstract

Keywords

ASJC Scopus subject areas

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