Journal
ASTROPHYSICAL JOURNAL
Volume 645, Issue 2, Pages L109-L112Publisher
IOP PUBLISHING LTD
DOI: 10.1086/506345
Keywords
gamma rays : bursts; gamma rays : observations; radiation mechanisms : thermal
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Using the Swift data of GRB 050315, we are making progress toward understanding the uniqueness of our theoretically predicted gamma-ray burst (GRB) structure, which is composed of a proper GRB (P-GRB), emitted at the transparency of an electron-positron plasma with suitable baryon loading, and an afterglow comprising the so-called prompt emission due to external shocks. Thanks to the Swift observations, the P-GRB is identified, and for the first time we can theoretically fit detailed light curves for selected energy bands on a continuous timescale ranging over 106 s. The theoretically predicted instantaneous spectral distribution over the entire afterglow is presented, confirming a clear hard-to-soft behavior encompassing, continuously, the prompt emission all the way to the latest phases of the afterglow.
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