Detecting Gravitational-Wave Memory with LIGO: Implications of GW150914.
Detecting Gravitational-Wave Memory with LIGO: Implications of GW150914.
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DOI：
10.1103/physrevlett.117.061102
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发表时间：
2016-05
影响因子：
8.6
通讯作者：
P. Lasky;E. Thrane;Y. Levin;J. Blackman;Yanbei Chen
中科院分区：
文献类型：
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作者：
P. Lasky;E. Thrane;Y. Levin;J. Blackman;Yanbei Chen
高级LIGO可能很快就能每年探测到数百个双黑洞合并。我们展示了如何积累许多这样的测量将允许检测引力波记忆：来自强场，广义相对论效应的时空的永久位移。我们估计，在设计灵敏度下运行的高级LIGO可能能够对具有与GW 150914类似的质量和距离的1035（90）个事件的存储器进行信噪比3（5）的检测。我们强调了将高阶引力波模式用于二元黑洞合并的参数估计的重要性，并描述了我们的方法如何在高级LIGO达到设计灵敏度之前也可用于检测高阶模式。
It may soon be possible for Advanced LIGO to detect hundreds of binary black hole mergers per year. We show how the accumulation of many such measurements will allow for the detection of gravitational-wave memory: a permanent displacement of spacetime that comes from strong-field, general relativistic effects. We estimate that Advanced LIGO operating at design sensitivity may be able to make a signal-to-noise ratio 3 (5) detection of memory with ∼35 (90) events with masses and distance similar to GW150914. We highlight the importance of incorporating higher-order gravitational-wave modes for parameter estimation of binary black hole mergers, and describe how our methods can also be used to detect higher-order modes themselves before Advanced LIGO reaches design sensitivity.