Influence of magnetic field on beta-processes in supernova matter
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.
Keywords
Cite
@article{arxiv.1912.12889,
title = {Influence of magnetic field on beta-processes in supernova matter},
author = {Alexandra Dobrynina and Igor Ognev},
journal= {arXiv preprint arXiv:1912.12889},
year = {2020}
}
Comments
10 pages, 11 figures. Added new figure and references, text around them is rewritten. Accepted to Phys.Rev.D