The surface gravitational redshift of the neutron star PSR B2303+46

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] Southwest Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China
来源：
BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA | 2013年 / 41卷 / 04期
关键词：
gravitation; stars: neutron; pulsars: individual: PSR B2303+46; SIGMA(-) ATOMS; HYPERNUCLEI; PULSARS; SPECTRUM; PI(-);
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The surface gravitational redshift of the neutron star PSR B2303+ 46 is investigated within the framework of relativistic mean field theory for the baryon octet system through adjusting the hyperon coupling constants. We obtain any models for the neutron star B2303+ 46 by choosing suitable hyperon coupling constants chi(sigma h) and chi(omega h) with chi(rho h) being determined by SU(6) symmetry and the nucleon coupling constant being chosen as CZ11. Our calculations show that the radius and the surface gravitational redshift of the neutron star PSR B2303+ 46 are determined as R = 12: 477 similar to 12: 493 km and z = 0: 2184 similar to 0: 2187, respectively. Our results are not consistent with the recent discovery of the massive neutron star PSR J1614 2230 and PSR J0348+0432.
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页码：291 / 298
页数：8
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