Remnant of binary black-hole mergers: New simulations and peak luminosity studies
Remnant of binary black-hole mergers: New simulations and peak luminosity studies
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DOI：
10.1103/physrevd.95.024037
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发表时间：
2016-10
影响因子：
5
通讯作者：
J. Healy;C. Lousto
中科院分区：
文献类型：
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作者：
J. Healy;C. Lousto
我们提出了61个新的非旋进自旋黑洞双星的模拟结果，质量比$q=m_1/m_2$的范围为1/3\leqq\leq1 $和个人的自旋覆盖参数空间$-0.85\leq\alpha_{1，2}\leq0.85$。我们还进行了10个新的模拟nonspinning黑洞双星的质量比覆盖范围1/6\leq q q<1$。我们通常会跟踪合并前最后十个轨道的演化，直到最终的残余黑洞形成。这使得我们以前的经验公式的准确性评估有关的二元参数的残余最终黑洞的质量，自旋和反冲。我们使用新的模拟来改进对上述剩余公式的拟合，并添加了一个关于引力波峰值光度的公式，该公式是在两个视界合并为一个视界时产生的。我们发现很好的协议（典型的错误0.1 -0.2\%$）的质量和自旋，并在$\sim 5\%$的反冲和峰值亮度。这些公式直接应用于参数估计技术适用于LIGO观测引力波从双黑洞合并。
We present the results of 61 new simulations of nonprecessing spinning black hole binaries with mass ratios $q=m_1/m_2$ in the range $1/3\leq q\leq1$ and individual spins covering the parameter space $-0.85\leq\alpha_{1,2}\leq0.85$. We additionally perform 10 new simulations of nonspinning black hole binaries with mass ratios covering the range $1/6\leq q<1$. We follow the evolution for typically the last ten orbits before merger down to the formation of the final remnant black hole. This allows for assessment of the accuracy of our previous empirical formulae for relating the binary parameters to the remnant final black hole mass, spin and recoil. We use the new simulation to improve the fit to the above remnant formulae and add a formula for the peak luminosity of gravitational waves, produced around the merger of the two horizons into one. We find excellent agreement (typical errors $\sim0.1-0.2\%$) for the mass and spin, and within $\sim5\%$ for the recoil and peak luminosity. These formulae have direct application to parameter estimation techniques applied to LIGO observations of gravitational waves from binary black hole mergers.