Hangup effect in unequal mass binary black hole mergers and further studies of their gravitational radiation and remnant properties
Hangup effect in unequal mass binary black hole mergers and further studies of their gravitational radiation and remnant properties
复制标题
不等质量双黑洞并合中的挂断效应及其引力辐射和残余特性的进一步研究
DOI：
10.1103/physrevd.97.084002
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发表时间：
2018
影响因子：
5
通讯作者：
Lousto, Carlos O.
中科院分区：
文献类型：
--
作者：
Healy, James;Lousto, Carlos O.
我们给出了74个新的非旋进自旋黑洞双星的模拟结果，它们的质量比在范围内，单个自旋覆盖参数空间。我们补充这些运行与107以前的模拟研究黑洞合并中的hangup效应，即延迟或即时合并的旋转孔相对于nonspinning二进制。我们执行的数值演化，通常是最后十个轨道合并前，到最后的残余黑洞的形成。这使我们能够研究不等质量双星的悬挂效应，从而确定控制合并前轨道数量的自旋变量，其中。结合联合收割机的181次模拟结果，得到了改进的最终黑洞质量、自旋和反冲速度以及引力应变的峰值亮度和峰值频率的拟合公式，并发现了它们之间新的关联。这一精确的新模拟集增加了可用于引力波观测参数估计的可用数值相对论波形的数量。
We present the results of 74 new simulations of nonprecessing spinning black hole binaries with mass ratiosin the rangeand individual spins covering the parameter space. We supplement those runs with 107 previous simulations to study the hangup effect in black hole mergers, i.e. the delay or prompt merger of spinning holes with respect to nonspinning binaries. We perform the numerical evolution for typically the last ten orbits before the merger and down to the formation of the final remnant black hole. This allows us to study the hangup effect for unequal mass binaries leading us to identify the spin variable that controls the number of orbits before merger as, where. We also combine the total results of those 181 simulations to obtain improved fitting formulas for the remnant final black hole mass, spin and recoil velocity as well as for the peak luminosity and peak frequency of the gravitational strain, and find new correlations among them. This accurate new set of simulations enhances the number of available numerical relativity waveforms available for parameter estimation of gravitational wave observations.