Influence of magnetic field on beta-processes in supernova matter
arXiv:1912.12889 · doi:10.1103/PhysRevD.101.083003
Abstract
An influence of a magnetic field on beta-processes is investigated under conditions of a core-collapse supernova. For realistic magnetic fields reachable in astrophysical objects we obtain simple analytical expressions for reaction rates of beta-processes as well as the energy and momentum transferred from neutrinos and antineutrinos to the matter. Based on the results of one-dimensional simulations of a supernova explosion, we found that, in the magnetic field with the strength G, the quantities considered are modified by a few percents only and, as a consequence, the magnetic-field effects can be safely neglected, considering neutrino interaction and propagation in a supernova matter. The analytical results can be also applied for accretion discs formed at a merger of compact objects in close binary systems.
arXiv comment10 pages, 11 figures. Added new figure and references, text around them is rewritten. Accepted to Phys.Rev.D
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