Fundamentals of the orbit and response for TianQin
Hu,Xin-Chun1; Li,Xiao-Hong1; Wang,Yan1; Feng,Wen-Fan1; Zhou,Ming-Yue1; Hu,Yi-Ming2,3; Hu,Shou-Cun4,5; Mei,Jian-Wei2,3; Shao,Cheng-Gang1
Source PublicationClassical and Quantum Gravity
AbstractAbstract TianQin is a space-based laser interferometric gravitational wave detector aimed at detecting gravitational waves at low frequencies (0.1 mHz–1 Hz). It is formed by three identical drag-free spacecrafts in an equilateral triangular constellation orbiting around the Earth. The distance between each pair of spacecrafts is approximately 1.7×105?km. The spacecrafts are interconnected by infrared laser beams forming up to three Michelson-type interferometers. The detailed mission design and the study of science objectives for the TianQin project depend crucially on the orbit and the response of the detector. In this paper, we provide the analytic expressions for the coordinates of the orbit for each spacecraft in the heliocentric-ecliptic coordinate system to the leading orders. This enables a sufficiently accurate study of science objectives and data analysis, and serves as a first step to further orbit design and optimization. We calculate the response of a single Michelson detector to plane gravitational waves in arbitrary waveform which is valid in the full range of the sensitive frequencies. It is then used to generate the more realistic sensitivity curve of TianQin. We apply this model on a reference white-dwarf binary as a proof of principle.
Keywordgravitational waves space-borne detector TianQin
WOS IDIOP:0264-9381-35-9-aab52f
PublisherIOP Publishing
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Document Type期刊论文
Affiliation1.MOE Key Laboratory of Fundamental Physical Quantities Measurements, Hubei Key Laboratory of Gravitation and Quantum Physics, School of Physics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, People’s Republic of China
2.TianQin Research Center for Gravitational Physics, Sun Yat-Sen University, Zhuhai 519082, People’s Republic of China
3.School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, People’s Republic of China
4.Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, 8 Yuanhua Road, Nanjing 210008, People’s Republic of China
5.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Recommended Citation
GB/T 7714
Hu,Xin-Chun,Li,Xiao-Hong,Wang,Yan,et al. Fundamentals of the orbit and response for TianQin[J]. Classical and Quantum Gravity,2018,35(9).
APA Hu,Xin-Chun.,Li,Xiao-Hong.,Wang,Yan.,Feng,Wen-Fan.,Zhou,Ming-Yue.,...&Shao,Cheng-Gang.(2018).Fundamentals of the orbit and response for TianQin.Classical and Quantum Gravity,35(9).
MLA Hu,Xin-Chun,et al."Fundamentals of the orbit and response for TianQin".Classical and Quantum Gravity 35.9(2018).
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