Coherence effects and neutrino pair bremsstrahlung in neutron stars

被引：26

作者：

Sedrakian, A ^{[1
]}

Dieperink, A ^{[1
]}

机构：

[1] Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands

来源：

PHYSICS LETTERS B | 1999年 / 463卷 / 2-4期

关键词：

dense matter; bremsstrahlung; neutrinos; neutron stars; supernovae;

D O I：

10.1016/S0370-2693(99)00989-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the rate of energy radiation by bremsstrahlung of neutrino pairs by baryons in neutron stars employing a transport model where neutrinos couple to baryons with spectral width. The: coherence effects, which are included by computing the self energies with fully dressed propagators, lead to the Landau-Pomeranchuk-Migdal suppression of the neutrino emission rates in the soft neutrino and high temperature limit. A microscopic evaluation of the bremsstrahlung rate by neutrons is carried out using the Brueckner theory of nuclear matter at finite temperatures. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：145 / 152

页数：8