双中子星合并

IF 26.3 2区 物理与天体物理 Q1 PHYSICS, PARTICLES & FIELDS
Joshua A. Faber, Frederic A. Rasio
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引用次数: 188

摘要

本文综述了双中子星系统合并的研究现状。我们首先讨论合并双星的形成通道,并讨论合并率的最新理论预测。接下来,我们转向准平衡形式,用于在合并阶段之前研究二进制并为完全动态模拟生成初始数据。准平衡近似在发展我们对双星合并物理的理解,特别是对轨道不稳定过程的理解方面发挥了关键作用,轨道不稳定过程可以驱动双星在其生命周期结束时合并。然后,我们转向动力学模拟中使用的数值技术,包括相对论形式化,(磁)流体动力学,引力波提取技术和核微物理处理。接下来是迄今为止在整个油田进行的模拟的总结,包括来自完全相对论和微物理详细模拟的最新结果。最后,我们讨论了当我们从第一代引力波干涉仪过渡到第二代引力波干涉仪以及当超级计算机达到千兆级前沿时,引力波场的可能方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Binary Neutron Star Mergers

Binary Neutron Star Mergers

We review the current status of studies of the coalescence of binary neutron star systems. We begin with a discussion of the formation channels of merging binaries and we discuss the most recent theoretical predictions for merger rates. Next, we turn to the quasi-equilibrium formalisms that are used to study binaries prior to the merger phase and to generate initial data for fully dynamical simulations. The quasi-equilibrium approximation has played a key role in developing our understanding of the physics of binary coalescence and, in particular, of the orbital instability processes that can drive binaries to merger at the end of their lifetimes. We then turn to the numerical techniques used in dynamical simulations, including relativistic formalisms, (magneto-)hydrodynamics, gravitational-wave extraction techniques, and nuclear microphysics treatments. This is followed by a summary of the simulations performed across the field to date, including the most recent results from both fully relativistic and microphysically detailed simulations. Finally, we discuss the likely directions for the field as we transition from the first to the second generation of gravitational-wave interferometers and while supercomputers reach the petascale frontier.

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来源期刊
Living Reviews in Relativity
Living Reviews in Relativity 物理-物理:粒子与场物理
CiteScore
69.90
自引率
0.70%
发文量
0
审稿时长
20 weeks
期刊介绍: Living Reviews in Relativity is a peer-reviewed, platinum open-access journal that publishes reviews of research across all areas of relativity. Directed towards the scientific community at or above the graduate-student level, articles are solicited from leading authorities and provide critical assessments of current research. They offer annotated insights into key literature and describe available resources, maintaining an up-to-date suite of high-quality reviews, thus embodying the "living" aspect of the journal's title. Serving as a valuable tool for the scientific community, Living Reviews in Relativity is often the first stop for researchers seeking information on current work in relativity. Written by experts, the reviews cite, explain, and assess the most relevant resources in a given field, evaluating existing work and suggesting areas for further research. Attracting readers from the entire relativity community, the journal is useful for graduate students conducting literature surveys, researchers seeking the latest results in unfamiliar fields, and lecturers in need of information and visual materials for presentations at all levels.
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