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A fast radio burst source at a complex magnetized site in a barred galaxy

文献类型：期刊论文

作者Xu, H.24,25,26; Niu, J. R.23,25; Chen, P.22,24,26; Lee, K. J.25,26; Zhu, W. W.25; Dong, S.26; Zhang, B.25,26; Jiang, J. C.24,25,26; Wang, B. J.24,25,26; Xu, J. W.24,25,26
刊名NATURE
出版日期2022-09-22
卷号609期号:7928页码:685-+
ISSN号0028-0836
DOI10.1038/s41586-022-05071-8
通讯作者Lee, K. J.(kjlee@pku.edu.cn) ; Zhu, W. W.(zhuww@nao.cas.cn) ; Dong, S.(dongsubo@pku.edu.cn) ; Zhang, B.(bing.zhang@unlv.edu)
英文摘要Fast radio bursts (FRBs) are highly dispersed, millisecond-duration radio bursts(1-3). Recent observations of a Galactic FRB4-8 suggest that at least some FRBs originate from magnetars, but the origin of cosmological FRBs is still not settled. Here we report the detection of 1,863 bursts in 82 h over 54 days from the repeating source FRB 20201124A (ref. (9)). These observations show irregular short-time variation of the Faraday rotation measure (RM), which scrutinizes the density-weighted line-of-sight magnetic field strength, of individual bursts during the first 36 days, followed by a constant RM. We detected circular polarization in more than half of the burst sample, including one burst reaching a high fractional circular polarization of 75%. Oscillations in fractional linear and circular polarizations, as well as polarization angle as a function of wavelength, were detected. All of these features provide evidence for a complicated, dynamically evolving, magnetized immediate environment within about an astronomical unit (au; Earth-Sun distance) of the source. Our optical observations of its Milky-Way-sized, metal-rich host galaxy(10-12) show a barred spiral, with the FRB source residing in a low-stellar-density interarm region at an intermediate galactocentric distance. This environment is inconsistent with a young magnetar engine formed during an extreme explosion of a massive star that resulted in a long gamma-ray burst or superluminous supernova.
WOS关键词FARADAY CONVERSION ; EMISSION ; ROTATION ; POLARIZATION ; RADIATION ; SEARCH
资助项目Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences[XDA15360000] ; Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences[XDA15052700] ; Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences[XDB23040400] ; National SKA Program of China[2020SKA0120100] ; National SKA Program of China[2020SKA0120200] ; Natural Science Foundation of China[12041304] ; Natural Science Foundation of China[11873067] ; Natural Science Foundation of China[11988101] ; Natural Science Foundation of China[12041303] ; Natural Science Foundation of China[11725313] ; Natural Science Foundation of China[11725314] ; Natural Science Foundation of China[11833003] ; Natural Science Foundation of China[12003028] ; Natural Science Foundation of China[12041306] ; Natural Science Foundation of China[12103089] ; Natural Science Foundation of China[U2031209] ; Natural Science Foundation of China[U2038105] ; Natural Science Foundation of China[U1831207] ; National Program on Key Research and Development Project[2019YFA0405100] ; National Program on Key Research and Development Project[2017YFA0402602] ; National Program on Key Research and Development Project[2018YFA0404204] ; National Program on Key Research and Development Project[2016YFA0400801] ; Key Research Program of the CAS[QYZDJ-SSW-SLH021] ; Natural Science Foundation of Jiangsu Province[BK20211000] ; Max Planck Partner Group ; China Manned Space Project[CMS-CSST-2021-B11] ; China Manned Space Project[CMS-CSST-2021-A11] ; PKU development grant[7101502590] ; Christopher R. Redlich Fund, the Miller Institute for Basic Research in Science ; Xplorer Prize ; Fundamental Research Funds for the Central Universities[14380046] ; Program for Innovative Talents, Entrepreneur in Jiangsu ; W. M. Keck Foundation ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000859132200004
出版者NATURE PORTFOLIO
资助机构Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences ; National SKA Program of China ; Natural Science Foundation of China ; National Program on Key Research and Development Project ; Key Research Program of the CAS ; Natural Science Foundation of Jiangsu Province ; Max Planck Partner Group ; China Manned Space Project ; PKU development grant ; Christopher R. Redlich Fund, the Miller Institute for Basic Research in Science ; Xplorer Prize ; Fundamental Research Funds for the Central Universities ; Program for Innovative Talents, Entrepreneur in Jiangsu ; W. M. Keck Foundation ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS
源URL[http://ir.xao.ac.cn/handle/45760611-7/4893]  
专题脉冲星研究团组
新疆天文台_光学天文与技术应用研究室
微波接收机技术实验室
射电天文研究室_天线技术实验室
科研仪器设备产出_我台利用FAST观测数据文章
通讯作者Lee, K. J.; Zhu, W. W.; Dong, S.; Zhang, B.
作者单位1.Nanjing Univ, Sch Astron & Space Sci, Nanjing, Peoples R China
2.Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA
3.CALTECH, Jet Prop Lab, Pasadena, CA USA
4.Max Planck Inst Radioastron, Bonn, Germany
5.CSIRO Space & Astron, Epping, NSW, Australia
6.Guizhou Normal Univ, Guiyang, Peoples R China
7.Chinese Acad Sci, Yunnan Observ, Kunming, Yunnan, Peoples R China
8.Univ Calif Santa Cruz, Dept Astron & Astrophys, UCO Lick Observ, Santa Cruz, CA 95064 USA
9.CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA
10.Univ Sci & Technol China, Hefei, Peoples R China
推荐引用方式
GB/T 7714		 Xu, H.,Niu, J. R.,Chen, P.,et al. A fast radio burst source at a complex magnetized site in a barred galaxy[J]. NATURE,2022,609(7928):685-+.
APA Xu, H..,Niu, J. R..,Chen, P..,Lee, K. J..,Zhu, W. W..,...&Zou, J. H..(2022).A fast radio burst source at a complex magnetized site in a barred galaxy.NATURE,609(7928),685-+.
MLA Xu, H.,et al."A fast radio burst source at a complex magnetized site in a barred galaxy".NATURE 609.7928(2022):685-+.

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