首页|Detection of astrophysical gravitational wave sources by TianQin and LISA

Detection of astrophysical gravitational wave sources by TianQin and LISA

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TianQin and LISA are space-based laser interferometer gravitational wave(GW)detectors planned to be launched in the mid-2030s.Both detectors will detect low-frequency GWs around 10-2 Hz;however,TianQin is more sensitive to frequencies above this common sweet-spot while LISA is more sensitive to frequencies below 10-2 Hz.Therefore,TianQin and LISA will be able to detect the same sources but with different accuracy depending on the source and its parameters.We consider some of the most important astrophysical sources-massive black hole binaries,stellar-mass black hole binaries,double white dwarfs,ex-treme mass ratio inspirals,light and heavy intermediate mass ratio inspirals,as well as the stochastic gravitational background of astrophysical origin-that TianQin and LISA will be able to detect.For each of these sources,we analyze how far they can be detected(detection distance)and how well their parameters can be measured(detection accuracy)using a Fisher Matrix analysis.We compare the results obtained by the three detection scenarios(TianQin alone,LISA alone,and joint detection by LISA and TianQin)highlighting the gains from joint detection as well as the contribution of TianQin and LISA to a combined study of as-trophysical sources.In particular,we consider the different orientations,lifetimes,and duty cycles of the two detectors to explore how they can give a more complete picture when working together.

gravitational wavesgravitational wave detectors and experimentsblack holeswhite dwarfs

Alejandro Torres-Oijuela、Shun-Jia Huang、Zheng-Cheng Liang、Shuai Liu、Hai-Tian Wang、Chang-Qing Ye、Yi-Ming Hu、Jianwei Mei

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MOE Key Laboratory of TianQin Mission,TianQin Research Center for Gravitational Physics,School of Physics and Astronomy,Frontiers Science Center for TianQin,Gravitational Wave Research Center of CNSA,Sun Yat-Sen University(Zhuhai Campus),Zhuhai 519082,China

Department of Physics,The University of Hong Kong,Hong Kong 999077,China

Kavli Institute for Astronomy and Astrophysics,Peking University,Beijing 100871,China

Guangdong Major Project of Basic and Applied Basic ResearchChina Postdoctoral Science FoundationChina Postdoctoral Science FoundationNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaOpening Foundation of TianQin Research CenterNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

2019B0303020012022M7236762022TQ001112247152119750271217310412261131504

2024

10.1007/s11433-023-2308-x

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(5)