China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna
Yue-Liang Wu, Ziren Luo, Jian-Yu Wang, M Bai, Wei Bian, Rong-Gen Cai, Zhiming Cai, J. Cao, Dijun Chen, Ling Chen, Lisheng Chen, Mingwei Chen, Weibiao Chen, Ze-Yi Chen, Linxiao Cong, Jianfeng Deng, Xiao-Long Dong, Li Duan, Sen-Quan Fan, Shoushan Fan, Chao Fang, Yuan Fang, Ke Feng, Feng Pan, Zhun Feng, Ruihong Gao, Run-Lian Gao, Zong‐Kuan Guo, Jianwu He, J. He, Xia Hou, Liang Hu, Wenrui Hu, Zhi-Qiang Hu, Minjie Huang, Jianjun Jia, Kaili Jiang, Gang Jin, Hong-Bo Jin, Qi Kang, Jungang Lei, Bo‐Quan Li, Dongjing Li, Fan Li, Haosi Li, Huawang Li, Liu-Feng Li, Wei Li, Xiaokang Li, Ying-Min Li, Yonggui Li, Yunpeng Li, Yupeng Li, Zhe Li, Zhiyong Lin, Chang Liu, Dong-Bin Liu, Heshan Liu, Hong Liu, Peng Liu, Yu‐Rong Liu, Zong-Yu Lu, Hong-Wei Luo, Fu-Li Ma, Longfei Ma, Xiaoshan Ma, Xin Ma, Yi-Chuan Man, Jian Min, Yu Niu, Jiankang Peng, Xiaodong Peng, Keqi Qi, Li-É Qiang, Cong‐Feng Qiao, Ye-Xi Qu, Wen-Hong Ruan, Wei Sha, Jia Shen, Xingjian Shi, Rong Shu, Ju Su, Yanlin Sui, Guangwei Sun, Wenlin Tang, Hongjiang Tao, Wenze Tao, Zheng Tian, Ling-Feng Wan, Chenyu Wang, Wang Jia, Juan Wang, Lin‐Lin Wang, Shaoxin Wang, Xiaopeng Wang, Yukun Wang, Zhi Wang, Zuolei Wang, Yu-Xiao Wei, Di Wu
Abstract
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.