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Magnetic Fields in Gamma-Ray Bursts: A Short Overview

Piran, Tsvi (2005) Magnetic Fields in Gamma-Ray Bursts: A Short Overview. In: Magnetic fields in the universe: from laboratory and stars to primordial structures. AIP Conference Proceedings. No.784. American Institute of Physics , Melville, NY, pp. 164-174. ISBN 0-7354-0273-6 http://resolver.caltech.edu/CaltechAUTHORS:20110809-150816789

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Abstract

Magnetic fields play a crucial role in the physics of Gamma-Ray Bursts (GRBs). Strong observational evidence indicates that the observed afterglow and most likely the prompt emission arise from synchrotron emission. It is possible that Poynting flux plays an important or even dominant role in the relativistic outflow from the inner engine, but like in other astronomical relativistic jets this suggestion is controversial. Finally, it is likely that magnetic fields larger than 10^(15) G occur within GRBs’ inner engines and contribute to the acceleration and collimation of the relativistic jets. I review here the GRB fireball model and discuss the role that magnetic fields play in its various components. I suggest that the early afterglow, that reflects the initial interaction of the relativistic jet with its surrounding matter is the best available tool to explore the nature of relativistic outflow in astronomical relativistic jets.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.2077181 DOIUNSPECIFIED
http://link.aip.org/link/?APCPCS/784/164/1PublisherUNSPECIFIED
Additional Information:© 2005 American Institute of Physics. Issue Date: 28 September 2005. I thank Ehud Nakar for many helpful discussions. This research was supported in part by a US-Israel BSF grant.
Funders:
Funding AgencyGrant Number
US-Israel Binational Science FoundationUNSPECIFIED
Subject Keywords:Gamma-Ray Bursts; magnetic fields; shock waves
Classification Code:PACS: 98.70.Rz, 47.65.+a, 47.75.+f, 52.35.
Record Number:CaltechAUTHORS:20110809-150816789
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20110809-150816789
Official Citation:Magnetic Fields in Gamma-Ray Bursts: A Short Overview Tsvi Piran, AIP Conf. Proc. 784, 164 (2005), DOI:10.1063/1.2077181
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24769
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Sep 2011 16:24
Last Modified:26 Dec 2012 13:28

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