Numerical relativity of compact binaries in the 21st century
Numerical relativity of compact binaries in the 21st century
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DOI：
10.1088/1361-6633/aadb16
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发表时间：
2018-08
影响因子：
18.1
通讯作者：
Matthew D. Duez;Y. Zlochower
中科院分区：
文献类型：
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作者：
Matthew D. Duez;Y. Zlochower
我们回顾了21世纪头二十年来在模拟致密天体和致密天体双星方面取得的巨大进展。这包括模拟包含黑洞和中子星的双星的吸气和剧烈合并，以及模拟通过失败的超新星和高质量中子星-中子星合并形成的黑洞。对这些事件进行建模需要在三维空间中对广义相对论的场方程进行数值积分，在包含中子星的双星的情况下，还要对流体、电磁场和中微子辐射进行日益复杂的处理。然而，直到2005年，包含黑洞的双星的精确长期演化才成为可能(Pretorius 2005 Phys。Rev. Lett. 95 121101, Campanelli et al . 2006物理。Rev. Lett. 96 111101, Baker et al . 2006物理学。Rev. Lett. 96 111102)。从那时起，人们对强引力系统的物理学有了大量的新发现和新见解。特别强调的是对这些极端事件的引力波和电磁信号的理解。随着激光干涉引力波天文台和室女座最近在合并黑洞中发现引力波，以及随后从合并的中子星-中子星双子星中发现电磁和引力波信号，数值相对论成为多信使天文学这个新领域不可或缺的工具。
We review the dramatic progress in the simulations of compact objects and compact-object binaries that has taken place in the first two decades of the twenty-first century. This includes simulations of the inspirals and violent mergers of binaries containing black holes and neutron stars, as well as simulations of black-hole formation through failed supernovae and high-mass neutron star–neutron star mergers. Modeling such events requires numerical integration of the field equations of general relativity in three spatial dimensions, coupled, in the case of neutron-star containing binaries, with increasingly sophisticated treatment of fluids, electromagnetic fields, and neutrino radiation. However, it was not until 2005 that accurate long-term evolutions of binaries containing black holes were even possible (Pretorius 2005 Phys. Rev. Lett. 95 121101, Campanelli et al 2006 Phys. Rev. Lett. 96 111101, Baker et al 2006 Phys. Rev. Lett. 96 111102). Since then, there has been an explosion of new results and insights into the physics of strongly-gravitating system. Particular emphasis has been placed on understanding the gravitational wave and electromagnetic signatures from these extreme events. And with the recent dramatic discoveries of gravitational waves from merging black holes by the Laser Interferometric Gravitational Wave Observatory and Virgo, and the subsequent discovery of both electromagnetic and gravitational wave signals from a merging neutron star–neutron star binary, numerical relativity became an indispensable tool for the new field of multimessenger astronomy.