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arXiv 1312.2640nucl-thastro-ph.HEhep-ph
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中子星中K介子凝聚的Skyrme-Hartree-Fock模型

Kaon Condensation in Neutron Stars with Skyrme-Hartree-Fock Models

Yeunhwan Lim, Kyujin Kwak, Chang Ho Hyun, Chang-Hwan Lee

摘要:

研究了含K介子凝聚的中子星中的核物质状态方程。众所周知,中子星中K介子的存在使得状态方程变软,中子星的最大质量不可能大于2.0 $M_{\odot}$,这是目前观测所限制的最大质量。利用已有的Skyrme力模型参数,计算了核状态方程,并检验了中子星核中K介子凝聚的可能性。结果表明,即使考虑K介子凝聚,核物质状态方程仍满足最大质量和质量半径的允许范围。

英文摘要:

We investigate nuclear matter equations of state in neutron star with kaon condensation. It is generally known that the existence of kaons in neutron star makes the equation of state soft so that the maximum mass of neutron star is not likely to be greater than 2.0 $M_{\odot}$, the maximum mass constrained by current observations. With existing Skyrme force model parameters, we calculate nuclear equations of state and check the possibility of kaon condensation in the core of neutron stars. The results show that even with the kaon condensation, the nuclear equation of state satisfies both the maximum mass and the allowed ranges of mass and radius.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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