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Beaming and jets in gamma-ray bursts

Sari, Re'em (2000) Beaming and jets in gamma-ray bursts. In: Gamma Ray Bursts: 5th Huntsville Symposium. AIP Conference Proceedings. No.526. American Institute of Physics , Melville, NY, pp. 504-513. ISBN 1-56396-947-5.

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The origin of GRBs has been a mystery for almost 30 years. The afterglow observed in the last few years enabled redshift determination for a handful of bursts, and the cosmological origin is now firmly established. Though the distance scale is settled, there still remains orders of magnitude uncertainty in their rate and in the total energy that is released in the explosion due to the possibility that the emission is not spherical but jet-like. Contrary to the GRB itself, the afterglow can be measured up to months and even years after the burst, and it can provide crucial information on the geometry of the ejecta. We review the theory of afterglow from jets and discuss the evidence that at least some of the bursts are not spherical. We discuss the prospects of polarization measurements, and show that this is a powerful tool in constraining the geometry of the explosion.

Item Type:Book Section
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URLURL TypeDescription
Sari, Re'em0000-0002-1084-3656
Additional Information:© 2000 American Institute of Physics. Issue Date: 8 September 2000. I thank Titus Galama for very useful comments, and the Sherman Fairchild foundation for support.
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
Subject Keywords:gamma-ray sources (astronomical); astrophysical jets; plasma shock waves, gamma-ray scattering, red shift, plasma instability, afterglows, relativistic plasmas, stellar winds, spectral line shift
Series Name:AIP Conference Proceedings
Issue or Number:526
Classification Code:PACS: 98.70.Rz; 98.62.Nx; 98.62.Py
Record Number:CaltechAUTHORS:20111201-093836393
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Official Citation:Beaming and jets in gamma-ray bursts Re'em Sari, AIP Conf. Proc. 526, 504 (2000), DOI:10.1063/1.1361590
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28273
Deposited On:01 Dec 2011 19:15
Last Modified:09 Nov 2021 16:55

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