Abstract
Space-borne gravitational wave(GW)detectors can detect the merger of massive black holes.The early warning and localiza-tion 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 deg2 on the final day before the merger.
基金项目
Guangdong Major Project of Basic and Applied Basic Research(2019B030302001)
National Natural Science Foundation of China(12173104)
National Natural Science Foundation of China(12261131504)
维普
万方数据