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中国空间引力波探测“太极计划”及“太极1号”在轨测试
罗子人1,2,3,4, 张敏2,3,4, 靳刚1,2,3,4, 吴岳良2,3,4,5, 胡文瑞1,2
1.中国科学院 力学研究所,北京 100190;2.中国科学院大学 引力波宇宙太极实验室,北京 100049;3.中国科学院大学杭州高等研究院 基础物理与数学科学学院,杭州 310024;4.国际理论物理中心-亚太地区,北京 100190;5.中国科学院 理论物理研究所,北京 100190
摘要:
我国空间引力波探测“太极计划”将打开中低频段(0.1 mHz~1 Hz)的引力波观测窗口,为人类研究宇宙起源与演化、黑洞起源与演化、引力本质、暗能量和暗物质等提供全新的方法和手段。由于空间引力波探测涉及一系列关键技术,太极计划提出了“单星”“双星”和“三星”3步走的发展路线图。目前“单星”计划——“太极1号”发射成功,并圆满完成了第一阶段的在轨测试。本文将简要介绍空间引力波探测的科学价值、国内外背景和关键技术分解,重点对太极计划及其3步走发展规划进行分析,并提出后续工作的一些设想和发展建议。
关键词:  空间引力波探测  太极计划  星间激光干涉测距系统  无拖曳控制系统  引力波天文学
DOI:10.15982/j.issn.2095-7777.2020.20191230001
分类号:P142.8+4;V556.7;V448.2;P15;O412.1
基金项目:中国科学院战略性先导科技专项“空间引力波探测背景型号研究”(XDA15020700);中国科学院战略性先导科技专项“多波段引力波宇宙研究”(XDB23030000)
Introduction of Chinese Space-Borne Gravitational Wave Detection Program “Taiji” and “Taiji-1” Satellite Mission
LUO Ziren1,2,3,4, ZHANG Min2,3,4, JIN Gang1,2,3,4, WU Yueliang2,3,4,5, HU Wenrui1,2
1.Institute of Mechanics,Chinese Academy of Science,Beijing 100190,China;2.Gravitational Wave Universe Taiji Laboratory,University of Chinese Academy of Science,Beijing 100049,China;3.School of Fundamental Physics and Mathematical Science,Hangzhou Institute for Advanced Study,UCAS,Hangzhou 310024,China;4.International Center for Theoretical Physics Asia-Pacific,Beijing 100190,China;5.Institute of Theoretical Physics,Chinese Academy of Science,Beijing 100190,China
Abstract:
Chinese Space-borne Gravitational Wave Detection Program “Taiji” is to detect the gravitational wave(GW)within the frequency band between 0.1 mHz and 1 Hz. The GW sources in such frequency band offer a brand new approach to study our universe,the supper massive black holes,the nature of gravity,the dark matter and the dark energy. The technologies related to Taiji program are so challenging that Taiji have to take three steps,“single satellite”,“double satellites” and “three satellites”,to achieve the final objectives. The “single satellite” mission,called Taiji-1,is now successfully launched,and the first run of on-orbit testing is completed. A brief review of the scientific influences,the recent status and the anatomy of key technologies of the space-borne GW detection missions are given. The mission overview and the 3-step strategic planning of Taiji program are analyzed. The future perspectives and some advices concerned with Taiji program are also discussed.
Key words:  space-borne gravitational wave detection mission  Taiji program  inter-satellite laser ranging interferometer system  drag-free control system  gravitational wave astronomy