Hard Electron Distribution in Gamma Ray Burst Afterglows

Details Hard Electron Distribution in Gamma Ray Burst Afterglows Hard Electron Distribution in Gamma Ray Burst Afterglows

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1133..241r&link_type=abstract

GAMMA-RAY BURST: Sixth Huntsville Symposium. AIP Conference Proceedings, Volume 1133, pp. 241-243 (2009).

Computer Science

Gamma-Ray Sources, Gamma-Ray Bursts, Galactic Winds And Fountains, Particle Acceleration

Scientific paper

Particle acceleration in relativistic shocks is not a very well understood subject. Owing to that difficulty, radiation spectra from relativistic shocks, such as those in GRB afterglows, have been often modelled by making assumptions about the underlying electron distribution. One such assumption is a relatively soft distribution of the particle energy, which need not be true always, as is obvious from observations of several GRB afterglows. We describe modifications to the afterglow standard model to accommodate energy spectra which are `hard'. We calculate the overall evolution of the synchrotron and compton flux arising from such a distribution and test the model predictions against afterglow observations.

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