DIRECT URCA PROCESS IN NEUTRON-STARS

被引：718

作者：

LATTIMER, JM

PETHICK, CJ

PRAKASH, M

HAENSEL, P

机构：

[1] NORDITA,DK-2100 COPENHAGEN,DENMARK

[2] UNIV ILLINOIS,DEPT PHYS,URBANA,IL 61801

[3] SUNY STONY BROOK,DEPT PHYS,STONY BROOK,NY 11794

[4] COPERNICUS ASTRON CTR,PL-00716 WARSAW,POLAND

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.66.2701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the direct URCA process can occur in neutron stars if the proton concentration exceeds some critical value in the range (11-15)%. The proton concentration, which is determined by the poorly known symmetry energy of matter above nuclear density, exceeds the critical value in many current calculations. If it occurs, the direct URCA process enhances neutrino emission and neutron star cooling rates by a large factor compared to any process considered previously.

引用

页码：2701 / 2704

页数：4

共 31 条

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