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arXiv 2309.06910gr-qcastro-ph.GAastro-ph.IM
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利用天琴对大质量黑洞双星进行近实时引力波数据分析

Near Real-Time Gravitational Wave Data Analysis of the Massive Black Hole Binary with TianQin

Hong-Yu Chen, Xiang-Yu Lyu, En-Kun Li, Yi-Ming Hu

AI总结:

本文面向天琴引力波探测器开发大质量黑洞双星搜索与定位流程,验证实时数据传输可在并合前近实时完成高精度定位。

摘要:

星载引力波(GW)探测器能够探测大质量黑洞的并合。在并合前对引力波事件进行预警和定位,可用于通知电磁望远镜并开展多信使观测。然而,这需要实时数据传输和分析能力。星载引力波探测器天琴的地心轨道使其能够进行实时数据传输。在本研究中,我们在常规和实时两种数据传输模式下,开发了一个利用天琴对大质量黑洞双星(MBHBs)进行搜索和定位的流程。我们证明,借助实时数据传输,可以在运行过程中对MBHBs进行精确定位。随着并合临近,每次分析仅需40分钟即可完成。对于距离为1 Gpc的MBHB系统,如果我们每小时接收一次数据,那么在并合前最后一天就能将其位置精确到小于1 deg²的范围内。

英文摘要:

Space-borne gravitational wave (GW) detectors can detect the merger of massive black holes. The early warning and localization of GW events before merging can be used to inform electromagnetic telescopes and conduct multimessenger observations. However, this requires real-time data transmission and analysis capabilities. The geocentric orbit of the space-borne GW detector TianQin makes it possible to conduct real-time data transmission. In this study, we develop a search and localization pipeline for massive black hole binaries (MBHBs) with TianQin under both regular and real-time data transmission modes. We demonstrate that, with real-time data transmission, MBHBs can be accurately localized on the fly. With the approaching merger, each analysis can be finished in only 40 min. For an MBHB system at a distance of 1 Gpc, if we receive data every hour, then we can pinpoint its location to within less than 1 deg$^2$ on the final day before the merger.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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