APM OpenIR
Numerical simulation of time delay interferometry for TAIJI and new LISA
Wang, Gang1,2; Ni, Wei-Tou3,4
2019-04-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume19Issue:4Pages:14
AbstractThe 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.
Keywordgravitational waves methods: numerical techniques: interferometric
Funding OrganizationPeople 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
DOI10.1088/1674-4527/19/4/58
WOS KeywordSPACE ; MISSION ; ASTROD
Language英语
Funding ProjectPeople Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/(PEOPLE-2013-ITN) under REA grant[606176]
Funding OrganizationPeople 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
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000463893700010
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.apm.ac.cn/handle/112942/13761
Collection中国科学院武汉物理与数学研究所
Corresponding AuthorWang, Gang
Affiliation1.INFN, Gran Sasso Sci Inst, I-67100 Laquila, Italy
2.INFN, Sez Pisa, Edificio C,Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
Recommended Citation
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.
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