Phase transitions in neutron stars within modified quark-meson coupling model

被引：0
|
作者：
Ma Chang-Qun [1 ]
Gao Chun-Yuan
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2008年 / 50卷 / 01期
关键词：
neutron star; modified quark-meson coupling model; nuclear matter; quark matter;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
K-condensation and quark deconfinement phase transitions in neutron stars are investigated. We use the modified quark-meson coupling model for hadronic phase and the MIT bag model for quark phase. With the equation of state (EOS) solved self-consistently, we discuss the properties of neutron stars. We find that the EOS of pure hadron matter with condensed K-phase should be ruled out by the redshift for star EX00748-676, while EOS containing unpaired quark matter phase with B 114 being about 180 MeV could be consistent with both this observation and the best measured mass of star PSR 1913 + 16. But if the recent inferred massive star among Terzan 5 with M > 1.68M(circle dot) is confirmed, all the present EOSes with condensed phase and deconfined phase would be ruled out.
引用
收藏
页码：180 / 186
页数：7
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