Plasmas in Gamma-Ray Bursts: particle acceleration, magnetic fields, radiative Processes and environments
arXiv:1902.02562
Abstract
Being the most extreme explosions in the universe, gamma-ray bursts (GRBs) provide a unique laboratory to study various plasma physics phenomena. The complex lightcurve and broad-band, non-thermal spectra indicate a very complicated system on the one hand, but on the other hand provide a wealth of information to study it. In this chapter I focus on recent progress in some of the key unsolved physical problems. These include: (1) Particle acceleration and magnetic field generation in shock waves; (2) Possible role of strong magnetic fields in accelerating the plasmas, and accelerating particles via magnetic reconnection process; (3) Various radiative processes that shape the observed lightcurve and spectra, both during the prompt and the afterglow phases, and finally (4) GRB environments and their possible observational signature.
arXiv commentInvited chapter for a special issue of "galaxies", dedicated to "Cosmic Plasmas and Electromagnetic phenomena"
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