Gamma-ray burst afterglows from trans-relativistic blast waves

Details Gamma-ray burst afterglows from trans-relativistic blast waves Gamma-ray burst afterglows from trans-relativistic blast waves

2009-12-02

arxiv.org/abs/0912.0422v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

small two-page contribution to conference proceedings "The Shocking Universe. Gamma-ray Bursts and High Energy Shock Phenomena

Scientific paper

We present a study of the intermediate regime between ultra-relativistic and nonrelativistic flow for gamma-ray burst afterglows. The hydrodynamics of spherically symmetric blast waves is numerically calculated using the AMRVAC adaptive mesh refinement code. Spectra and light curves are calculated using a separate radiation code that, for the first time, links a parametrisation of the microphysics of shock acceleration, synchrotron self-absorption and electron cooling to a high-performance hydrodynamics simulation.

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