A no-hair test for binary black holes

A no-hair test for binary black holes
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双黑洞的无毛发测试

DOI:
10.1103/physrevd.99.104056
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发表时间:
2019
期刊:
影响因子:
5
通讯作者:
Sathyaprakash, B. S.
Sathyaprakash, B. S.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Dhanpal, Siddharth;Ghosh, Abhirup;Mehta, Ajit Kumar;Ajith, Parameswaran;Sathyaprakash, B. S.

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广义相对论(GR)中黑洞“无毛”定理的一个结果是,来自扰动克尔黑洞的引力辐射(准正规模)由其质量和自旋唯一确定。因此,准正规模频率的频谱必须与相同的质量和自旋值一致。类似地,来自合并中的双黑洞系统的引力辐射是由少数参数(黑洞的质量和自旋以及轨道参数)唯一确定的。因此,不同的球谐模式的辐射之间的一致性是一个强大的测试,所观察到的系统是一个二元黑洞预测的GR。我们制定这样的测试,开发贝叶斯实现,模拟数据上演示其性能,并调查使用以前和即将到来的引力波观测进行这样的测试的可能性。
One of the consequences of the black-hole “no-hair” theorem in general relativity (GR) is that gravitational radiation (quasinormal modes) from a perturbed Kerr black hole is uniquely determined by its mass and spin. Thus, the spectrum of quasinormal mode frequencies have to be all consistent with the same value of the mass and spin. Similarly, the gravitational radiation from a coalescing binary black hole system is uniquely determined by a small number of parameters (masses and spins of the black holes and orbital parameters). Thus, consistency between different spherical harmonic modes of the radiation is a powerful test that the observed system is a binary black hole predicted by GR. We formulate such a test, develop a Bayesian implementation, demonstrate its performance on simulated data, and investigate the possibility of performing such a test using previous and upcoming gravitational wave observations.
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