Constraints on the Moment of Inertia of a Proto Neutron Star from the Hyperon Coupling Constants

被引：0
|
作者：
Zhao, Xian-Feng [1 ]
Jia, Huan-Yu [2 ]
机构：
[1] Chuzhou Univ, Coll Mech & Elect Engn, Chuzhou 239000, Peoples R China
[2] SW Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China
来源：
JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 2012年 / 33卷 / 03期
关键词：
The moment of inertia; the relativistic mean field theory; proto neutron star; ROTATING RELATIVISTIC STARS;
D O I：
10.1007/s12036-012-9147-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The influence of the hyperon coupling constants on the moment of inertia of a proto neutron star has been investigated within the framework of relativistic mean field theory for the baryon octet {n, p, Lambda, Sigma(-), Sigma(0), Sigma(+), Xi(-), Xi(0)} system. It is found that for a proto neutron star, the mass, the moment of inertia and their own maximum values as a function of radius R or M/R are all more sensitive to the hyperon coupling constants. For all the different hyperon coupling constants mentioned, the case of no hyperons corresponds to the largest moment of inertia.
引用
收藏
页码：303 / 310
页数：8
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