Neutrino Processes in Strong Magnetic Fields
Abstract
The processes of electron neutrino capture on neutron and electron anti-neutrino capture on proton, and their reverse processes provide the dominant mechanisms for heating and cooling the material below the stalled shock in a core-collapse supernova. We summarize the major effects of strong magnetic fields on the rates of the above reactions and illustrate these effects with a simple supernova model. Due to parity violation of weak interaction the heating rates are asymmetric even for a uniform magnetic field. The cooling rates are also asymmetric for nonuniform fields. The most dramatic effect of strong magnetic fields of 10^16 G is suppression of the cooling rates by changing the equations of state through the phase space of electrons and positrons.
Cite
@article{arxiv.astro-ph/0506129,
title = {Neutrino Processes in Strong Magnetic Fields},
author = {Huaiyu Duan and Yong-Zhong Qian},
journal= {arXiv preprint arXiv:astro-ph/0506129},
year = {2017}
}
Comments
10 pages, 4 figures, talk given at INT workshop "Open Issues in Understanding Core Collapse Supernovae," Seattle, June 2004