Empirical tests of the black hole no-hair conjecture using gravitational-wave observations
Empirical tests of the black hole no-hair conjecture using gravitational-wave observations
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DOI：
10.1103/physrevd.98.104020
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发表时间：
2018-05
影响因子：
5
通讯作者：
Gregorio Carullo;L. V. D. Schaaf;L. London;P. T. Pang;K. W. Tsang;O. Hannuksela;J. Meidam;M. Agathos;A. Samajdar;A. Ghosh;T. Li;W. D. Pozzo;C. Broeck
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文献类型：
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作者：
Gregorio Carullo;L. V. D. Schaaf;L. London;P. T. Pang;K. W. Tsang;O. Hannuksela;J. Meidam;M. Agathos;A. Samajdar;A. Ghosh;T. Li;W. D. Pozzo;C. Broeck
我们展示了具有设计灵敏度的第二代引力波探测器将使我们能够直接探测双黑洞合并的振荡相。这为用严格的统计学方法检验所谓的黑洞无毛猜想提供了可能。使用最先进的数值相对论调谐波形模型和专门的方法来有效地隔离振铃描述有效的准静态微扰区，我们展示了测量残余黑洞的物理参数并随后确定与克尔黑洞的振铃的参数偏差的能力。通过将来自$\Mathcal{O}(5)$二元黑洞合并的信息与当前一代探测器可实现的实际信噪比相结合，在90%的置信度下，可以以$\EnsureMath{\sim}1.5%$的精确度验证无毛猜想的有效性。
We show that second-generation gravitational-wave detectors at their design sensitivity will allow us to directly probe the ringdown phase of binary black hole coalescences. This opens the possibility to test the so-called black hole no-hair conjecture in a statistically rigorous way. Using state-of-the-art numerical relativity-tuned waveform models and dedicated methods to effectively isolate the quasistationary perturbative regime where a ringdown description is valid, we demonstrate the capability of measuring the physical parameters of the remnant black hole and subsequently determining parameterized deviations from the ringdown of Kerr black holes. By combining information from $\mathcal{O}(5)$ binary black hole mergers with realistic signal-to-noise ratios achievable with the current generation of detectors, the validity of the no-hair conjecture can be verified with an accuracy of $\ensuremath{\sim}1.5%$ at 90% confidence.