论文标题

GW170817之后的二进制中子星合并

Binary neutron star mergers after GW170817

论文作者

Ciolfi, Riccardo

论文摘要

2017年8月,来自二进制中子星(BNS)合并的引力波和电磁信号的首次合并检测(称为GW170817的事件)代表了对这些非凡系统进行正在进行的研究的主要地标。在这篇简短的综述中,我们将BNS合并引入了对天体物理学和基本物理学最重要的事件,并讨论了第一个多通用器观察所实现的主要发现,其中包括令人信服的证据,这些证据表明此类合并产生了大量的重型R-Process元素,并可以为短伽马射线爆发提供动力。我们进一步讨论了此事件中留下的关键开放问题,并且BNS一般合并,将注意力集中在理论模型和数值模拟的当前状态和局限性上。

The first combined detection of gravitational waves and electromagnetic signals from a binary neutron star (BNS) merger in August 2017 (event named GW170817) represents a major landmark for the ongoing investigation on these extraordinary systems. In this short review, we introduce BNS mergers as events of the utmost importance for astrophysics and fundamental physics and discuss the main discoveries enabled by this first multimessenger observation, which include compelling evidence that such mergers produce a copious amount of heavy r-process elements and can power short gamma-ray bursts. We further discuss key open questions left behind on this event and BNS mergers in general, focussing the attention on the current status and limitations of theoretical models and numerical simulations.

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