LARGE-MASS NEUTRON STARS WITH HYPERONIZATION

被引：57

作者：

Jiang, Wei-Zhou ^{[1
,2
]}

Li, Bao-An ^{[3
,4
]}

Chen, Lie-Wen ^{[2
,5
,6
]}

机构：

[1] SE Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China

[2] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China

[3] Texas A& M Univ Commerce, Dept Phys & Astron, Commerce, TX 75429 USA

[4] Xi An Jiao Tong Univ, Dept Appl Phys, Xian 710049, Peoples R China

[5] Shanghai Jiao Tong Univ, INPAC, Dept Phys, Shanghai 200240, Peoples R China

[6] Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China

来源：

ASTROPHYSICAL JOURNAL | 2012年 / 756卷 / 01期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

dense matter; equation of state; stars: neutron; EQUATION-OF-STATE; PHASE-TRANSITIONS; NUCLEAR-MATTER; QUARK MATTER; CONSTRAINTS; HYPERONS; PHYSICS;

D O I：

10.1088/0004-637X/756/1/56

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Within a density-dependent relativistic mean-field model and using in-medium meson-hadron coupling constants and meson masses, we explore the effects of in-medium hyperon interactions on the properties of neutron stars. We found that hyperonic constituents in large-mass neutron stars cannot be simply ruled out, while the recently measured mass of the millisecond pulsar J1614-2230 can significantly constrain in-medium hyperon interactions. In addition, we discuss the effects of nuclear symmetry energy on hyperonization in neutron stars.

引用

页数：8

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