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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
A repeating fast radio burst associated with a persistent radio source
Nature, Volume 606, No. 7916, Year 2022
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Description
The dispersive sweep of fast radio bursts (FRBs) has been used to probe the ionized baryon content of the intergalactic medium1, which is assumed to dominate the total extragalactic dispersion. Although the host-galaxy contributions to the dispersion measure appear to be small for most FRBs2, in at least one case there is evidence for an extreme magneto-ionic local environment3,4 and a compact persistent radio source5. Here we report the detection and localization of the repeating FRB 20190520B, which is co-located with a compact, persistent radio source and associated with a dwarf host galaxy of high specific-star-formation rate at a redshift of 0.241 ± 0.001. The estimated host-galaxy dispersion measure of approximately 903−111+72 parsecs per cubic centimetre, which is nearly an order of magnitude higher than the average of FRB host galaxies2,6, far exceeds the dispersion-measure contribution of the intergalactic medium. Caution is thus warranted in inferring redshifts for FRBs without accurate host-galaxy identifications. © 2022, The Author(s).
Authors & Co-Authors
Niu, Chenghui
China, Beijing
Chinese Academy of Sciences
Aggarwal, Kshitij
United States, Morgantown
West Virginia University
Li, D. H.
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
China, Hangzhou
Zhejiang Lab
Zhang, Xian
China, Beijing
University of Chinese Academy of Sciences
China, Beijing
Chinese Academy of Sciences
Chatterjee, S.
United States, Ithaca
Cornell University
Tsai, Chaowei
China, Beijing
Chinese Academy of Sciences
Yu, Wenfei
China, Beijing
Chinese Academy of Sciences
Law, Casey J.
United States, Pasadena
California Institute of Technology
Spolaor, Sarah Burke
United States, Morgantown
West Virginia University
Canada, Toronto
Canadian Institute for Advanced Research
Cordes, James M.
United States, Ithaca
Cornell University
Zhang, Yongkun
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
Ocker, Stella Koch
United States, Ithaca
Cornell University
Yao, Jumei
China, Beijing
Chinese Academy of Sciences
Feng, Yi
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
China, Hangzhou
Zhejiang Lab
Niino, Yuu
Japan, Tokyo
The University of Tokyo
Cruces, Marilyn
Germany, Bonn
Max Planck Institute for Radio Astronomy
Connor, Liam D.
United States, Pasadena
California Institute of Technology
Dai, Shi
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Australia, Penrith
Western Sydney University
Luo, Rui
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Li, Guodong
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
Miao, Chenchen
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
Niu, Jiarui
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
Anna-Thomas, Reshma
United States, Morgantown
West Virginia University
Stern, Daniel K.
United States, Pasadena
Jet Propulsion Laboratory
Wang, Weiyang
China, Beijing
Chinese Academy of Sciences
China, Beijing
Peking University
Yuan, Mao
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
Yue, Youling
China, Beijing
Chinese Academy of Sciences
Zhou, Dejiang
China, Beijing
Chinese Academy of Sciences
China, Beijing
University of Chinese Academy of Sciences
Zhu, Weiwei
China, Beijing
Chinese Academy of Sciences
Zhang, Bing
United States, Las Vegas
University of Nevada, Las Vegas
Statistics
Citations: 83
Authors: 30
Affiliations: 14
Identifiers
Doi:
10.1038/s41586-022-04755-5
ISSN:
00280836