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arXiv 0912.3529astro-ph.HEgr-qc
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数值相对论面对致密中子星双星:回顾和现状报告

Numerical relativity confronts compact neutron star binaries: a review and status report

Matthew D. Duez

摘要:

我们回顾了目前的状态,试图数值模拟合并的中子星-中子星(NSNS)和黑洞-中子星(BHNS)的二元系统,我们描述了这样的事件,是从这些计算的理解。准确地模拟NSNS和BHNS合并的物理过程是一项艰巨的任务。它需要求解包含黑洞的动态时空的爱因斯坦方程。它还需要演化出高温、超核密度的中子星物质,以及能够影响合并后动力学的磁场和辐射场。早期的研究集中在这些挑战中的一个或另一个,但现在正在努力将相对论和微观物理学精确地结合起来。这些NSNS和BHNS模拟,然后用于表征这些事件的引力波信号,并解决其产生短持续时间的伽马射线暴的潜力。

英文摘要:

We review the current status of attempts to numerically model the merger of neutron star-neutron star (NSNS) and black hole-neutron star (BHNS) binary systems, and we describe the understanding of such events that is emerging from these calculations. To accurately model the physics of NSNS and BHNS mergers is a difficult task. It requires solving Einstein's equations for dynamic spacetimes containing black holes. It also requires evolving the hot, supernuclear-density neutron star matter together with the magnetic and radiation fields that can influence the post-merger dynamics. Older studies concentrated on either one or the other of these challenges, but now efforts are being made to model both relativity and microphysics accurately together. These NSNS and BHNS simulations are then used to characterize the gravitational wave signals of such events and to address their potential for generating short-duration gamma ray bursts.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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