Energy injection episodes in GRBs: The case of GRB 021004

Björnsson, G. and Gudmundsson, E. H. and Jóhannesson, G. (2005) Energy injection episodes in GRBs: The case of GRB 021004. Il nuovo cimento C, 28 (3). pp. 271-274. ISSN 1826-9885

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A number of GRB afterglow light curves deviate substantially from the power law decay observed in most bursts. These variations can be accounted for by including refreshed shocks in the standard fireball model previously used to interpret the overall afterglow behavior. We show that the light curves of GRB 021004 can be accounted for by four energy injection episodes in addition to the initial event. The polarization variations are shown to be a consequence of the injections.

Item Type: Article
Additional Information: Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004.
Uncontrolled Keywords: Relativistic plasmas ; Shock waves and discontinuities ; Radiation mechanisms; polarization ; γ-ray sources; γ-ray bursts
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 15 Mar 2020 11:50
Last Modified: 15 Mar 2020 11:50

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