Urca processes in dense matter and neutron star cooling

被引：22
作者：
Haensel, P
机构：
[1] N. Copernicus Astronomical Center, Polish Academy of Sciences, Warszawa, PL-00-716
来源：
SPACE SCIENCE REVIEWS | 1995年 / 74卷 / 3-4期
关键词：
dense matter; neutron stars;
D O I：
10.1007/BF00751429
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Urea-processes were introduced into astrophysics by Gamow and Schoenberg in 1941. Neutrino cooling resulting from urea-processes plays an important role at the latest stages of evolution of massive stars. Recent work on neutrino emissivity of dense matter shows that neutrino cooling via urca-processes could determine the thermal evolution of young neutron stars and depends dramatically on the composition of the neutron star core. In particular, if a neutron star contains a central core in which the ''direct urca-process'' is operative, the cooling timescale shortens by many orders of magnitude.
引用
收藏
页码：427 / 436
页数：10
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