多信使时代的核天体物理学：天作之合
Nuclear Astrophysics in the Multimessenger Era: A Partnership Made in Heaven
摘要：
2017年8月17日，LIGO-Virgo合作首次探测到来自两颗中子星（GW 170817）的双星合并的引力波。与两个黑洞的合并不同，相关的电磁辐射也被一系列在宽频率范围内运行的望远镜探测到-开启了多信使天文学的全新时代。这一历史性的探测为r过程的天体物理学位置和致密物质的性质提供了新的基本见解。在本文中，我们研究了GW 170817对富中子物质物态方程的影响，特别是对对称能的密度依赖性的影响。从GW 170817中提取的潮汐极化率的限制似乎表明对称能量是软的，从而排除了预测过大恒星半径的模型。
英文摘要：
On August 17, 2017 the LIGO-Virgo collaboration detected for the first time gravitational waves from the binary merger of two neutron stars (GW170817). Unlike the merger of two black holes, the associated electromagnetic radiation was also detected by a host of telescopes operating over a wide range of frequencies---opening a brand new era of multimessenger astronomy. This historical detection is providing fundamental new insights into the astrophysical site for the r-process and on the nature of dense matter. In this contribution we examine the impact of GW170817 on the equation of state of neutron rich matter, particularly on the density dependence of the symmetry energy. Limits on the tidal polarizability extracted from GW170817 seem to suggest that the symmetry energy is soft, thereby excluding models that predict overly large stellar radii.
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