The Prompt and High Energy Emission of Gamma Ray Bursts

Details The Prompt and High Energy Emission of Gamma Ray Bursts The Prompt and High Energy Emission of Gamma Ray Bursts

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1133..281m&link_type=abstract

GAMMA-RAY BURST: Sixth Huntsville Symposium. AIP Conference Proceedings, Volume 1133, pp. 281-287 (2009).

Physics

Gamma-Ray Sources, Gamma-Ray Bursts, X-Ray Binaries, X- And Gamma-Ray Telescopes And Instrumentation

Scientific paper

I discuss some recent developments concerning the prompt emission of gamma-ray bursts, in particular the jet properties and radiation mechanisms, as exemplified by the naked-eye burst GRB 080319b, and the prompt X-ray emission of XRB080109/SN2008d, where the progenitor has, for the first time, been shown to contribute to the prompt emission. I discuss then some recent theoretical calculations of the GeV/TeV spectrum of GRB in the context of both leptonic SSC models and hadronic models. The recent observations by the Fermi satellite of GRB 080916C are then reviewed, and their implications for such models are discussed, together with its interesting determination of a bulk Lorentz factor, and the highest lower limit on the quantum gravity energy scale so far.

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