Taiji data challenge for exploring gravitational wave universe

doi:10.1007/s11467-023-1318-y

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Taiji data challenge for exploring gravitational wave universe
	Ren, Zhixiang 1; Zhao, Tianyu 1,2; Cao, Zhoujian 2; Guo, Zong-Kuan ; Han, Wen-Biao ; Jin, Hong-Bo ; Wu, Yue-Liang
刊名	FRONTIERS OF PHYSICS
	2023
卷号	18 期号:6 页码:64302
关键词	BINARIES RECOVERY SPACE LASER
ISSN号	2095-0462
DOI	10.1007/s11467-023-1318-y
英文摘要	The direct observation of gravitational waves (GWs) opens a new window for exploring new physics from quanta to cosmos and provides a new tool for probing the evolution of universe. GWs detection in space covers a broad spectrum ranging over more than four orders of magnitude and enables us to study rich physical and astronomical phenomena. Taiji is a proposed space-based gravitational wave (GW) detection mission that will be launched in the 2030s. Taiji will be exposed to numerous overlapping and persistent GW signals buried in the foreground and background, posing various data analysis challenges. In order to empower potential scientific discoveries, the Mock Laser Interferometer Space Antenna (LISA) data challenge and the LISA data challenge (LDC) were developed. While LDC provides a baseline framework, the first LDC needs to be updated with more realistic simulations and adjusted detector responses for Taiji's constellation. In this paper, we review the scientific objectives and the roadmap for Taiji, as well as the technical difficulties in data analysis and the data generation strategy, and present the associated data challenges. In contrast to LDC, we utilize second-order Keplerian orbit and second-generation time delay interferometry techniques. Additionally, we employ a new model for the extreme-mass-ratio inspiral waveform and stochastic GW background spectrum, which enables us to test general relativity and measure the non-Gaussianity of curvature perturbations. Furthermore, we present a comprehensive showcase of parameter estimation using a toy dataset. This showcase not only demonstrates the scientific potential of the Taiji data challenge (TDC) but also serves to validate the effectiveness of the pipeline. As the first data challenge for Taiji, we aim to build an open ground for data analysis related to Taiji sources and sciences. More details can be found on the official website ().
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/28085]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci UCAS, Taiji Lab Gravitat Wave Universe, Beijing 100049, Peoples R China 2.Peng Cheng Lab, Shenzhen 518055, Peoples R China 3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 4.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 6.UCAS, Sch Phys Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 8.UCAS, Sch Astron & Space Sci, Beijing 100049, Peoples R China 9.UCAS, Int Ctr Theoret Phys Asia Pacific ICTP AP, UNESCO, Beijing 100190, Peoples R China 10.Shanghai Frontiers Sci Ctr Gravitat Wave Detect, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Ren, Zhixiang,Zhao, Tianyu,Cao, Zhoujian,et al. Taiji data challenge for exploring gravitational wave universe[J]. FRONTIERS OF PHYSICS,2023,18(6):64302.
APA	Ren, Zhixiang.,Zhao, Tianyu.,Cao, Zhoujian.,Guo, Zong-Kuan.,Han, Wen-Biao.,...&Wu, Yue-Liang.(2023).Taiji data challenge for exploring gravitational wave universe.FRONTIERS OF PHYSICS,18(6),64302.
MLA	Ren, Zhixiang,et al."Taiji data challenge for exploring gravitational wave universe".FRONTIERS OF PHYSICS 18.6(2023):64302.