1. China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna
- Author
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Zhi-Ming Cai, Xia Hou, Li-E Qiang, Peng Liu, Min-Jie Huang, Li-Ming Wu, Yang Yang, Jian-Kang Peng, Tao Yu, Yan-Lin Sui, Wei Li, Jun-Gang Lei, Zhi Wang, Xiaoshan Ma, Zhang-Bin Xue, Cui-Yun Zhou, Jian Min, Sen-Wen Xue, Yu-Xiao Wei, Gang Jin, Shuang Yang, Jin-Pei Yu, Wei Bian, Zuo-Lei Wang, Zhi-Yong Lin, Wei-Wei Zhao, Yun-Peng Li, Hua-Wang Li, Xue-Quan Zhang, He-Shan Liu, Ye-Xi Qu, Chao Yang, Zi-Ming Zou, Yong-Li Yin, Jian-Jun Jia, Juan Wang, Yu Xu, Hong-Wei Luo, Xing-Jian Shi, Yi-Fang Xie, Yupeng Li, Yuan Fang, Rong Shu, Shu-Yan Xu, Hong-Bo Jin, Rong-Gen Cai, Yuan-Zhong Zhang, Ying-Min Li, Li Duan, Liang Hu, Wei Sha, Min Zhang, Sun Guangwei, Ke Feng, Shi-Jia Yang, Xiaodong Peng, Shou-Shan Fan, Zheng Tian, Chang Liu, Ling-Feng Wan, Shaoxin Wang, Xiao-Kang Li, Ju Su, Ziren Luo, Hao-Si Li, Zhong-Guo Yang, Liu-Feng Li, Ya Zhao, Yu-Rong Liu, Jian-Hua Zheng, Zong-Yu Lu, Zhi-Hua Wu, Ling Chen, Bo-Quan Li, Long-Fei Ma, Li-Sheng Chen, Lin-Xiao Cong, Dijun Chen, Di Wu, Ji-Bo He, Jian-Wu He, Zong-Kuan Guo, Weibiao Chen, Peng-Zhan Wu, Fan Li, Kai-Li Jiang, Xin Ma, Zhun Feng, Yukun Wang, Zhe Li, Ze-Yi Chen, Pan Feng, Wenlin Tang, Yi-Chuan Man, Cong-Feng Qiao, Dong-Xue Xi, Rui-Hong Gao, Meng Bai, Wen-Rui Hu, Wen-Ze Tao, Yu Niu, Chao Fang, Jian-Yu Wang, Jian Zhao, Xiao-Peng Wang, Hong-Jiang Tao, Ming-Wei Chen, Fu-Li Ma, Jia Wang, Qi Kang, Keqi Qi, Ai-Bing Zhang, Chen-Yu Wang, Yang Ran, Lu-Xiang Xu, Jia Shen, Dong-Jing Li, Run-Lian Gao, Jin Cao, Dong-Bin Liu, Guo-Feng Xing, Peng Xu, Jian-Feng Deng, Xiao-Bo Zou, Lin-Lin Wang, Wen-Hong Ruan, Hong Liu, Xiao-Long Dong, Yong-Gui Li, Sen-Quan Fan, Zhen-Cai Zhu, Chu Zhang, Yue-Liang Wu, and Zhi-Qiang Hu
- Subjects
Physics ,Gravitational-wave observatory ,Gravitational wave ,General relativity ,QC1-999 ,Astrophysics::Instrumentation and Methods for Astrophysics ,General Physics and Astronomy ,Astronomy ,Astrophysics ,01 natural sciences ,Gravitational-wave astronomy ,Metric expansion of space ,QB460-466 ,symbols.namesake ,General Relativity and Quantum Cosmology ,0103 physical sciences ,symbols ,Satellite ,Antenna (radio) ,010306 general physics ,010303 astronomy & astrophysics ,Hubble's law - Abstract
In this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper. Gravitational wave astronomy has opened the door to test general relativity and the effect of gravity in the Universe. The authors present the capabilities of an overlap between space gravitational wave detectors LISA and Taiji to constrain the Hubble constant to 0.5%, in 10 years, and what can be learned from the satellite pilot Taiji-1 launched in 2019.
- Published
- 2021