Follow-up analyses to the O3 LIGO–Virgo–KAGRA lensing searches
Follow-up analyses to the O3 LIGO–Virgo–KAGRA lensing searches
复制标题
O3 LIGO – Virgo – KAGRA 透镜搜索的后续分析
DOI：
10.1093/mnras/stad2909
复制
发表时间：
2023
影响因子：
4.8
通讯作者：
Lo, R. K. L.
中科院分区：
文献类型：
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作者：
Janquart, J.;Wright, M.;Goyal, S.;Chan, J. C. L.;Ganguly, A.;Garrón, Á.;Keitel, D.;Li, A. K. Y.;Liu, A.;Lo, R. K. L.
沿着它们从源到观测者的路径，引力波可能被大质量物体引力透镜化，导致信号失真。已经对来自当前检测器网络的观测信号中的这些失真进行了检测，尽管还没有可靠的检测。然而，对透镜观测率的预测表明，未来的探测是一个现实的可能性。因此，需要做好准备以彻底调查候选透镜信号。在这项工作中，我们提出了一些后续的分析，可以应用于评估这些事件的意义，并确定哪些信息可以提取有关的镜头源系统，通过将这些分析的O3候选事件的数量，即使这些信号没有产生高的意义的任何透镜假说。这些分析涵盖了强透镜，millilensing和微透镜制度。应用这些额外的分析不会导致任何额外的证据，透镜在候选人已经审查。然而，它确实提供了重要的洞察力，潜在的途径，以处理高显着的候选人在未来的观察。
Along their path from source to observer, gravitational waves may be gravitationally lensed by massive objects leading to distortion in the signals. Searches for these distortions amongst the observed signals from the current detector network have already been carried out, though there have as yet been no confident detections. However, predictions of the observation rate of lensing suggest detection in the future is a realistic possibility. Therefore, preparations need to be made to thoroughly investigate the candidate lensed signals. In this work, we present some follow-up analyses that could be applied to assess the significance of such events and ascertain what information may be extracted about the lens-source system by applying these analyses to a number of O3 candidate events, even if these signals did not yield a high significance for any of the lensing hypotheses. These analyses cover the strong lensing, millilensing, and microlensing regimes. Applying these additional analyses does not lead to any additional evidence for lensing in the candidates that have been examined. However, it does provide important insight into potential avenues to deal with high-significance candidates in future observations.