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arXiv 2005.14443nucl-th
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具有核能密度泛函的中子星状态方程和潮汐形变

Neutron star equation of state and tidal deformability with nuclear energy density functionals

Young-Min Kim, Kyujin Kwak, Chang Ho Hyun, Hana Gil, Chang-Hwan Lee

摘要:

中子星是致密核物质物理学的终极试验场所。在探测到由双中子星并合产生的引力波之前,人们利用各种核状态方程,根据电磁观测结果,估算了中子星的质量和半径等宏观性质。然而,最近的引力波GW 170817对中子星潮汐形变的观测开启了多信使天文学和天体物理学的新纪元,许多理论工作被扩展到估算中子星的潮汐形变。在这篇文章中,我们回顾了我们最近的工作应用核能密度泛函的中子星的性质,包括潮汐变形。我们发现,许多核能密度泛函,包括新的KIDS(韩国:IBS-Daegu-Sungkyunkwan)模型,满足目前的电磁和引力波观测的约束。我们讨论了未来的可能性约束核物质状态方程的地面实验和多信使观测。

英文摘要:

Neutron star is the ultimate testing place for the physics of dense nuclear matter. Before the detection of gravitational waves from the merger of binary neutron stars, various nuclear equations of state have been used to estimate the macroscopic properties of neutron stars, such as masses and radii, based on the electromagnetic observations. However, recent observations on the tidal deformability of neutron star from the gravitational waves GW170817 opened a new era of multi-messenger astronomy and astrophysics, and many theoretical works have been extended to estimate the tidal deformability of neutron stars. In this article, we review our recent works on the application of nuclear energy density functionals to the properties of neutron stars including tidal deformability. We found that many nuclear energy density functionals, including new KIDS (Korea: IBS-Daegu-Sungkyunkwan) model, satisfy both constraints from current electromagnetic and gravitational wave observations. We discuss future possibilities of constraining nuclear matter equation of state from ground-based experiments and multi-messenger observations.

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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