论文标题
使用天体物理事件对第三次观察的天体物理事件对Ligo和处女座探测器的相对校准
Relative calibration of the LIGO and Virgo detectors using astrophysical events from their third observing run
论文作者
论文摘要
我们探索了一种方法，可以使用在第三次观察跑步（O3）期间检测到的二进制黑洞（BBH）事件来评估重力波网络不同检测器中测量应变的相对量表。此类信号的数量已经变得足够大，可以根据检测器之间事件的信噪比（SNR）的比率和每个检测器中观察到的事件的数量来采用统计方法。我们证明了BBH信号模拟方法的原理，并将其应用于多波段模板分析（MBTA）管道报告的已发布的O3事件。 O3重力波网络的相对校准的限制是在两个LIGO检测器之间的〜3.5％的水平上获得的，在Ligo Livingston检测器和处女座检测器之间的水平约为10％。
We explore a method to assess the relative scale of the strain measured in the different detectors of the gravitational-wave network, using binary black hole (BBH) events detected during the third observing run (O3). The number of such signals is becoming sufficiently large to adopt a statistical approach based on the ratio of the signal-to-noise ratio (SNR) of the events between the detectors and the number of observed events in each detector. We demonstrate the principle of the method on simulations of BBH signals and we present its application to published O3 events reported by the Multi-Band Template Analysis (MBTA) pipeline. Constraints on the relative calibration of the gravitational-wave network for O3 are obtained at the level of ~3.5% between the two LIGO detectors and at the level of ~10% between the LIGO Livingston detector and the Virgo detector.
