Rapid Spin Deceleration of Magnetized Proto-Neutron Stars via Asymmetric Neutrino Emission

Autor:	Maruyama, T., Hidaka, J., Kajino, T., Yasutake, N., Kuroda, T., Cheoun, M. K., Ryu, C. Y., Mathews, Grant. J.
Rok vydání:	2013
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - High Energy Astrophysical Phenomena High Energy Physics - Phenomenology Nuclear Theory
Zdroj:	Physical Review C89, 035801 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevC.89.035801
Popis:	We calculate the spin deceleration of proto-neutron stars by asymmetric neutrino absorption in the context of a fully relativistic mean field theory. We calculate for the first time the spin deceleration of neutron stars due to asymmetric neutrino absorption in a toroidal magnetic field configurations. We find a surprising effect that the deceleration can much larger for asymmetric neutrino absorption in a toroidal magnetic field than the usually presumed braking due to magnetic dipole radiation. This may explain the observation that magnetars appear to have had a more rapid deceleration in the past. Comment: 13 pages, 1 figure, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1301.7495 Zobrazit plný text záznamu View this record from Arxiv