论文标题
通过重力波探测外来紧凑物体中的共振激发
Probing resonant excitations in exotic compact objects via gravitational waves
论文作者
论文摘要
现在正在定期检测到二进制黑洞合并的引力波（GWS）与先进的Ligo和高级处女座干涉仪进行定期检测。已经提出了异国情调的紧凑物体（ECO），它与Kerr黑洞有所不同，并且可以通过多种方式在GW信号上留下印记。在这里，我们考虑了Inspiral期间ECO的激发，当单调增加的GW频率与外来物体的谐振频率匹配时，可能会发生这种情况。这会导致轨道能被取走，从而加快轨道相的进化。我们表明，使用贝叶斯模型选择，可以通过第二代干涉仪检测到具有诱导相移的共鸣$ \ lyssim 10 $弧度。我们将我们的方法应用于第一个和第二个观测的高级Ligo和高级处女座的运行中的GWTC-1目录中的检测，从而发现了与来源的二进制黑洞性质的一致性。
Gravitational waves (GWs) from presumed binary black hole mergers are now being detected on a regular basis with the Advanced LIGO and Advanced Virgo interferometers. Exotic compact objects (ECOs) have been proposed that differ from Kerr black holes, and which could leave an imprint upon the GW signal in a variety of ways. Here we consider excitations of ECOs during inspiral, which may occur when the monotonically increasing GW frequency matches a resonant frequency of an exotic object. This causes orbital energy to be taken away, leading to a speed-up of the orbital phase evolution. We show that resonances with induced phase shifts $\lesssim 10$ radians can be detectable with second-generation interferometers, using Bayesian model selection. We apply our methodology to detections in the GWTC-1 catalog from the first and second observing runs of Advanced LIGO and Advanced Virgo, finding consistency with the binary black hole nature of the sources.
