Black hole ringdown echoes and howls
Black hole ringdown echoes and howls
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DOI：
10.1093/ptep/ptx093
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发表时间：
2017-04
期刊：
影响因子：
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通讯作者：
H. Nakano;N. Sago;H. Tagoshi;Takahiro Tanaka
中科院分区：
文献类型：
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作者：
H. Nakano;N. Sago;H. Tagoshi;Takahiro Tanaka
最近，人们发现了探测来自双黑洞合并的振铃引力波回波的可能性。如果黑洞被一面反射视界附近引力波的镜子包围，那么回声的存在是可以预期的。在这里，我们提出了稍微复杂的模板激励的波形，这是通过求解线性扰动方程的克尔黑洞周围的固定行波近似中的完全反射边界条件。我们估计，所提出的模板可以带来约10美元的信噪比的改善。
Recently the possibility of detecting echoes of ringdown gravitational waves from binary black hole mergers was shown. The presence of echoes is expected if the black hole is surrounded by a mirror that reflects gravitational waves near the horizon. Here, we present slightly more sophisticated templates motivated by a waveform which is obtained by solving the linear perturbation equation around a Kerr black hole with a complete reflecting boundary condition in the stationary traveling wave approximation. We estimate that the proposed template can bring about $10\%$ improvement in the signal-to-noise ratio.