Collisions of boosted black holes: Perturbation theory prediction of gravitational radiation.
Collisions of boosted black holes: Perturbation theory prediction of gravitational radiation.
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增强黑洞的碰撞：引力辐射的微扰理论预测。
DOI：
10.1103/physrevd.50.r2364
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Cook
中科院分区：
文献类型：
--
作者：
Abrahams;Cook
我们考虑广义相对论柯西数据表示两个非自旋，质量相等的黑洞相互推动。当两个黑洞彼此足够接近且它们的动量足够大时，就会出现一个环绕的视视界，因此系统可以被视为一个单一的受扰动的黑洞。我们采用规范不变微扰理论，并整合Zerilli方程来分析这些时间不对称的数据集，计算引力波形和发射能量。再加上一个简单的牛顿分析的下落轨迹时，我们发现惊人的协议之间的扰动计算的发射能量和完全广义相对论的时间对称的初始数据的数值模拟的结果。
We consider general relativistic Cauchy data representing two nonspinning, equal-mass black holes boosted toward each other. When the black holes are close enough to each other and their momentum is sufficiently high, an encompassing apparent horizon is present so the system can be viewed as a single, perturbed black hole. We employ gauge-invariant perturbation theory, and integrate the Zerilli equation to analyze these time-asymmetric data sets and compute gravitational waveforms and emitted energies. When coupled with a simple Newtonian analysis of the infall trajectory, we find striking agreement between the perturbation calculation of emitted energies and the results of fully general relativistic numerical simulations of time-symmetric initial data.