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The emission features of GRB afterglows
Wei, D.M. ; Lu, T.
Source PublicationAIP Conference Proceedings
AbstractThe authors talk about the effects of inverse Compton scattering (ICS) and jet on GRB afterglows. In the simplest fireball model, synchrotron radiation is believed to be the main mechanism of GRB emission, however, they show that under some circumstances, the inverse Compton scattering may play an important role, and can change the light curves of GRB afterglows. Beaming of relativistic ejecta in GRBs has been postulated by many authors in order to reduce the total GRB energy, thus it is very important to look for the observational evidence of beaming. They analyse the dynamical evolution of the jet blast wave, calculate the jet emission analytically, they find that the sharp break predicted by Rhoads will actually not exist, and for most cases the afterglow light curve will almost not be affected by sideways expansion unless the beaming angle is extremely small. They demonstrate that only when thetas 0<0.1, the afterglow light curves may be steepened by sideways expansion, and in fact there cannot be two breaks as claimed before
KeywordGamma-ray-burst Fireball Model Light Curves Grb-990123 Evolution Remnants
Subject AreaPhysics
Document Type期刊论文
Recommended Citation
GB/T 7714
Wei, D.M.,Lu, T.. The emission features of GRB afterglows[J]. AIP Conference Proceedings,2001(556):284-290.
APA Wei, D.M.,&Lu, T..(2001).The emission features of GRB afterglows.AIP Conference Proceedings(556),284-290.
MLA Wei, D.M.,et al."The emission features of GRB afterglows".AIP Conference Proceedings .556(2001):284-290.
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