Strongly lensed repeating fast radio bursts as precision probes of the universe

doi:10.1038/s41467-018-06303-0

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	Strongly lensed repeating fast radio bursts as precision probes of the universe
	Li, Zheng-Xiang 1; Gao, He 1; Ding, Xu-Heng 2; Wang, Guo-Jian 1; Zhang, Bing 3,4,5,6
刊名	NATURE COMMUNICATIONS
	2018-09-20
卷号	9 页码:8
ISSN号	2041-1723
DOI	10.1038/s41467-018-06303-0
英文摘要	Fast radio bursts (FRBs), bright transients with millisecond durations at similar to GHz and typical redshifts probably >0.8, are likely to be gravitationally lensed by intervening galaxies. Since the time delay between images of strongly lensed FRB can be measured to extremely high precision because of the large ratio similar to 10(9) between the typical galaxy-lensing delay time similar to O (10 days) and the width of bursts similar to O (ms), we propose strongly lensed FRBs as precision probes of the universe. We show that, within the flat Lambda CDM model, the Hubble constant H-0 can be constrained with a similar to 0.91% uncertainty from 10 such systems probably observed with the square kilometer array (SKA) in <30 years. More importantly, the cosmic curvature can be model independently constrained to a precision of similar to 0.076. This constraint can directly test the validity of the cosmological principle and break the intractable degeneracy between the cosmic curvature and dark energy.
资助项目	Ministry of Science and Technology National Basic Science Program (Project 973)[2014CB845806] ; National Natural Science Foundation of China[11505008] ; National Natural Science Foundation of China[11722324] ; National Natural Science Foundation of China[11603003] ; National Natural Science Foundation of China[11373014] ; National Natural Science Foundation of China[11633001] ; Chinese Academy of Sciences[XDB23040100] ; [2017M622501]
WOS关键词	HE 0435-1223 ; GALAXIES ; H-0 ; HISTORY ; MODEL ; HOST ; MASS
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000445064100002
资助机构	Ministry of Science and Technology National Basic Science Program (Project 973) ; Ministry of Science and Technology National Basic Science Program (Project 973) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry of Science and Technology National Basic Science Program (Project 973) ; Ministry of Science and Technology National Basic Science Program (Project 973) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry of Science and Technology National Basic Science Program (Project 973) ; Ministry of Science and Technology National Basic Science Program (Project 973) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry of Science and Technology National Basic Science Program (Project 973) ; Ministry of Science and Technology National Basic Science Program (Project 973) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/22710]
专题	中国科学院国家天文台
通讯作者	Gao, He
作者单位	1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 2.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China 3.Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA 4.Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China 5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Li, Zheng-Xiang,Gao, He,Ding, Xu-Heng,et al. Strongly lensed repeating fast radio bursts as precision probes of the universe[J]. NATURE COMMUNICATIONS,2018,9:8.
APA	Li, Zheng-Xiang,Gao, He,Ding, Xu-Heng,Wang, Guo-Jian,&Zhang, Bing.(2018).Strongly lensed repeating fast radio bursts as precision probes of the universe.NATURE COMMUNICATIONS,9,8.
MLA	Li, Zheng-Xiang,et al."Strongly lensed repeating fast radio bursts as precision probes of the universe".NATURE COMMUNICATIONS 9(2018):8.