Numerical simulation of time delay interferometry for TAIJI and new LISA

doi:10.1088/1674-4527/19/4/58

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	Numerical simulation of time delay interferometry for TAIJI and new LISA
	Wang, Gang 2,3; Ni, Wei-Tou 1,4
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2019-04-01
卷号	19 期号:4 页码:14
关键词	gravitational waves methods: numerical techniques: interferometric
ISSN号	1674-4527
DOI	10.1088/1674-4527/19/4/58
英文摘要	The success of LISA Pathfinder in demonstrating the LISA drag-free requirement paved the way for using space interferometers to detect low-frequency and middle-frequency gravitational waves (GWs). The TAIJI GW mission and the new LISA GW mission propose using an arm length of 3 Gm (1 Gm = 10(6) km) and an arm length of 2.5 Gm respectively. For a space laser-interferometric GW antenna, due to astrodynamical orbit variation, time delay interferometry (TDI) is needed to achieve nearly equivalent equal-arms for suppressing the laser frequency noise below the level of optical path noise, acceleration noise, etc in order to attain the requisite sensitivity. In this paper, we simulate TDI numerically for the TAIJI mission and the new LISA mission. To do this, we work out a set of 2200-day (6-year) optimized science orbits for each mission starting on 2028 March 22 using the CGC 2.7.1 ephemeris framework. Then we use the numerical method to calculate the residual optical path differences of the first-generation TDI configurations and the selected second-generation TDI configurations. The resulting optical path differences of the second-generation TDI configurations calculated for TAIJI, new LISA and eLISA are well below their respective requirements for laser frequency noise cancelation. However, for the first-generation TDI configurations, the original requirements need to be relaxed by 3 to 30 fold to be satisfied. For TAIJI and the new LISA, about one order of magnitude relaxation would be good and recommended; this could be borne on the laser stability requirement in view of recent progress in laser stability, or the GW detection sensitivities of the second-generation TDIs have to be used in the diagnosis of the observed data instead of the commonly used X, Y and Z TDIs.
资助项目	People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant[606176]
WOS关键词	SPACE ; MISSION ; ASTROD
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000463893700010
资助机构	People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant ; People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/26015]
专题	中国科学院国家天文台
通讯作者	Wang, Gang
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.INFN, Gran Sasso Sci Inst, I-67100 Laquila, Italy 3.INFN, Sez Pisa, Edificio C,Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy 4.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Wang, Gang,Ni, Wei-Tou. Numerical simulation of time delay interferometry for TAIJI and new LISA[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(4):14.
APA	Wang, Gang,&Ni, Wei-Tou.(2019).Numerical simulation of time delay interferometry for TAIJI and new LISA.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(4),14.
MLA	Wang, Gang,et al."Numerical simulation of time delay interferometry for TAIJI and new LISA".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.4(2019):14.