GB11 - Plasma acceleration and transparency in GRBs |
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Speaker |
Melon Fuksman, Julio David |
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Coauthors |
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| Talk Title |
Numerical scheme for radiation transfer in relativistic hydrodynamics |
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Abstract |
Radiation transport plays a crucial role in most high-energy astrophysical processes, such as black hole accretion disks, jets, pulsar winds, core-collapse supernovae and gamma-ray bursts. In some of these, for instance in the so-called shock breakouts that occur in supernovae when radiation-mediated shocks reach a star's photosphere, radiation is transported between optically-thick and optically-thin regions. Therefore, it is optimal to approach such problems using methods that are able to describe both regimes, which is not a trivial task, since that requires the handling of timescales that sometimes can differ in several orders of magnitude. Also, in most of these phenomena, matter dynamics is severely influenced by the presence of strong electromagnetic fields. We present in this work a numerical code applicable to radiation transfer problems in relativistic hydrodynamics and magnetohydrodynamics, which we have designed as an independent module to be included in the freely-available PLUTO code. |
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Talk view |
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