Merger and Mass Ejection of Neutron Star Binaries

IF 9.1 2区物理与天体物理 Q1 PHYSICS, NUCLEAR

Annual Review of Nuclear and Particle Science Pub Date : 2019-08-06 DOI:10.1146/annurev-nucl-101918-023625

M. Shibata, K. Hotokezaka

引用次数: 130

Abstract

Mergers of binary neutron stars and black hole–neutron star binaries are among the most promising sources for ground-based gravitational-wave (GW) detectors and are also high-energy astrophysical phenomena, as illustrated by the observations of GWs and electromagnetic (EM) waves in the event of GW170817. Mergers of these neutron star binaries are also the most promising sites for r-process nucleosynthesis. Numerical simulation in full general relativity (numerical relativity) is a unique approach to the theoretical prediction of the merger process, GWs emitted, mass ejection process, and resulting EM emission. We summarize the current understanding of the processes of neutron star mergers and subsequent mass ejection based on the results of the latest numerical-relativity simulations. We emphasize that the predictions of the numerical-relativity simulations agree broadly with the optical and IR observations of GW170817.

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中子星双星的合并和质量抛射

双星-中子星和黑洞-中子星双星的合并是地面引力波（GW）探测器最有前途的来源之一，也是高能天体物理现象，如GW170817事件中对GWs和电磁波的观测所示。这些中子星双星的合并也是r过程核合成最有希望的地点。全广义相对论（数值相对论）中的数值模拟是对合并过程、发射的GWs、质量抛射过程以及由此产生的EM发射进行理论预测的一种独特方法。根据最新的数值相对论模拟结果，我们总结了目前对中子星合并和随后质量抛射过程的理解。我们强调，数值相对论模拟的预测与GW170817的光学和红外观测结果大致一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annual Review of Nuclear and Particle Science 物理-物理：核物理

CiteScore

21.50

自引率

0.80%

发文量

期刊介绍： The Annual Review of Nuclear and Particle Science is a publication that has been available since 1952. It focuses on various aspects of nuclear and particle science, including both theoretical and experimental developments. The journal covers topics such as nuclear structure, heavy ion interactions, oscillations observed in solar and atmospheric neutrinos, the physics of heavy quarks, the impact of particle and nuclear physics on astroparticle physics, and recent advancements in accelerator design and instrumentation. One significant recent change in the journal is the conversion of its current volume from gated to open access. This conversion was made possible through Annual Reviews' Subscribe to Open program. As a result, all articles published in the current volume are now freely available to the public under a CC BY license. This change allows for greater accessibility and dissemination of research in the field of nuclear and particle science.