A Relativistic Quantum Approach to Neutrino and Antineutrino Emissions via the Direct Urca Process in Strongly Magnetized Neutron-Star Matter

Autor:	Maruyama, Tomoyuki, Balantekind, A. Baha, Cheoung, Myung-Ki, Kajino, Toshitaka, Kusakabef, Motohiko, Mathewsh, Grant J.
Rok vydání:	2021
Předmět:	Nuclear Theory Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2021.136813
Popis:	We study neutrino and antineutrino emission from the direct Urca process in neutron-star matter in the presence of strong magnetic fields. We calculate the neutrino emissivity of the direct Urca process, whereby a neutron converts to a proton, an electron and an antineutrino, or a proton-electron pair converts to a neutron-neutrino pair. We solve exact wave functions for protons and electrons in the states described with Landau levels. We find that the direct Urca process can satisfy the kinematic constraints even in density regions where this process could not normally occur in the absence of a magnetic field. Comment: 15 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2103.01703 Zobrazit plný text záznamu View this record from Arxiv