论文标题
LISA的GWTC-3事件的可检测性和参数估计
Detectability and parameter estimation of GWTC-3 events with LISA
论文作者
论文摘要
融合恒星质量黑洞二进制的多播观察可以提供有关这些来源的形成以及潜在偏离一般相对论的有价值的信息。这些二进制文件中的一些可能首先是由空间的检测器丽莎（Lisa）检测到的，然后几年后，使用地面探测器观察到。由于天体物理模型中的不确定性很大，很难预测丽莎可以观察到的这种二进制文件的种群。在这项工作中，我们评估了LISA检测Ligo/Pergo/Kagra协作发布的第三个引力源目录的事件。在使用地面检测器观察到该事件后，我们考虑使用Lisa直接检测源并在Lisa数据流中进行档案搜索的可能性。我们还评估丽莎可以改善源参数的确定。我们发现，不能保证将发现除GW150914以外的任何事件。然而，如果丽莎检测到任何事件，即使具有非常低的信号噪声比，源参数的测量将通过结合丽莎和基于地面探测器的观测值，尤其是在chirp质量方面来改善。
Multiband observations of coalescing stellar-mass black holes binaries could deliver valuable information on the formation of those sources and potential deviations from General Relativity. Some of these binaries might be first detected by the space-based detector LISA and, then, several years later, observed with ground-based detectors. Due to large uncertainties in astrophysical models, it is hard to predict the population of such binaries that LISA could observe. In this work, we assess the ability of LISA to detect the events of the third catalogue of gravitational wave sources released by the LIGO/Virgo/KAGRA collaboration. We consider the possibility of directly detecting the source with LISA and performing archival searches in the LISA data stream, after the event has been observed with ground-based detectors. We also assess how much could LISA improve the determination of source parameters. We find that it is not guaranteed that any event other than GW150914 would have been detected. Nevertheless, if any event is detected by LISA, even with a very low signal-to-noise ratio, the measurement of source parameters would improve by combining observations of LISA and ground based detectors, in particular for the chirp mass.
