A repeating fast radio burst associated with a persistent radio source

Niu, C.-H.; Aggarwal, K.K.; Li, Di; Zhang, Xian; Chatterjee, Shami; Tsai, Chris; Yu, Wenfei; Law, Casey; Burke-Spolaor, Sarah; Cordes, J. M.; Zhang, Yongkun; Ocker, Stella Koch; Yao, Jumei; Wang, P.; Feng, Yi; Niino, Yuu; Bochenek, Christopher D.; Cruces, Marilyn; Connor, Liam; Jiang, J.-A.; Dai, Shi; Luo, Rui; Li, Guodong; Miao, Caixia; Niu, Jiarui; Anna-Thomas, Reshma; Sydnor, Jessica; Stern, Daniel; Wang, Weiyang; Yuan, Mao; Yue, Youling; Zhou, D. J.; Yan, Zhen; Zhu, Weiwei; Zhang, Bing

doi:10.1038/s41586-022-04755-5

articleNatureJun 8, 2022HYBRID OA

A repeating fast radio burst associated with a persistent radio source

CNC.-H. Niu KAK.K. Aggarwal DLDi Li XZXian Zhang SCShami Chatterjee

Chinese Academy of Sciences · National Astronomical Observatories · +18 more institutions

PubMed

Indexed inarxivcrossrefpubmed

Abstract

Abstract The dispersive sweep of fast radio bursts (FRBs) has been used to probe the ionized baryon content of the intergalactic medium 1 , which is assumed to dominate the total extragalactic dispersion. Although the host-galaxy contributions to the dispersion measure appear to be small for most FRBs 2 , in at least one case there is evidence for an extreme magneto-ionic local environment 3,4 and a compact persistent radio source 5 . 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…

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Topics & keywords

Topics

Keywords

Astrophysics
Physics
Fast radio burst
Intergalactic travel
Redshift
Galaxy
Dispersion (optics)
Radio galaxy

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