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

页码：180 / 186

页数：7

共 33 条

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