Gamma-ray burst afterglows from trans-relativistic blast waves

2009/12/02 by H. J. van Eerten, Hendrik van Eerten, K. Leventis +7 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #FOS: Physical sciences #Gamma-ray bursts and supernovae #High Energy Astrophysical Phenomena (astro-ph.HE) #Pulsars and Gravitational Waves Research #astro-ph.HE

paper · pdf · doi:10.48550/arxiv.0912.0422

small two-page contribution to conference proceedings "The Shocking Universe. Gamma-ray Bursts and High Energy Shock Phenomena". Venice, 14-18 September 2009

arxiv created 2009/12/02 · openalex publication_date 2009/12/02 · arxiv updated 2009/12/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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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