2012/06/28 by Alexey Tolstov, A. G. Tolstov, Tolstov, A. G.
Physics and Astronomy · #Astro and Planetary Science #Astronomy and Astrophysical Research #Gamma-ray bursts and supernovae #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1206.6807
arxiv created 2012/06/28 · arxiv updated 2012/06/29
We have performed detailed calculations of spectra and light curves of GRB afterglows assuming that the observed GRBs can have a jet geometry. The calculations are based on an expanding relativistic shock GRB afterglow model where the afterglow is the result of synchrotron radiation of relativistic electrons with power-law energy distribution at the front of external shock being decelerated in a circumstellar medium. To determine the intensity on the radiation surface we solve numerically the full time-, angle-, and frequency-dependent special relativistic transfer equation in the comoving frame using the method of long characteristics.