An Extremely Active Repeating Fast Radio Burst Source in a Likely Nonmagneto-ionic Environment
文献类型：期刊论文
| 作者 | Feng, Yi1,17; Li, Di1,2,3; Zhang, Yong-Kun3,4; Tsai, Chao-Wei3,4,5; Qu, Yuanhong6,7; Wang, Wei-Yang4,15,16; Yang, Yuan-Pei13,14; Wang, Pei3,5; Zhou, Dengke1; Niu, Jiarui3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 974期号:2页码:296 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad7a64 |
| 产权排序 | 17 |
| 英文摘要 | Fast radio bursts (FRBs) are bright radio bursts originating at cosmological distances. Only three repeating FRBs FRB 20121102A, FRB 20190520B, and FRB 20201124A among similar to 60 known repeating FRBs have circular polarization. We observed the FRB 20220912A with the Robert C. Byrd Green Bank Telescope (GBT) at L-band on 2022 October 24 and detected 128 bursts in 1.4 hr, corresponding to a burst rate of about 90 hr-1, which is the highest yet for FRBs observed by the GBT. The average rotation measure (RM) was -0.4 +/- 0.3 rad m-2 with negligible intraday RM change, indicating a likely nonmagneto-ionic environment. A total of 61% of bursts have a linear polarization fraction greater than 90%. Approximately 56% of the bright bursts have circular polarization. A downward drift in frequency and polarization angle swings were found in our sample. The characterization of FRB 20220912A indicates that the circular polarization is unlikely to be caused by the magneto-ionic environment for at least some of the repeating FRB population. |
| WOS关键词 | MAGNETOSPHERIC CURVATURE RADIATION ; SYNCHROTRON MASER EMISSION ; ROTATION MEASURE ; MAGNETIC-FIELD ; FRB 121102 ; POLARIZATION ; DISPERSION ; SCATTERING ; DISCOVERY ; GEOMETRY |
| 资助项目 | National Key R&D Program of China[2023YFE0110500] ; National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[12203045] ; National Natural Science Foundation of China[11725313] ; National Natural Science Foundation of China[12003028] ; Leading Innovation and Entrepreneurship Team of Zhejiang Province of China[2023R01008] ; Key R&D Program of Zhejiang[2024SSYS0012] ; China Manned Spaced Project[CMS-CSST-2021-B11] ; National Science Foundation operated under cooperative agreement by Associated Universities, Inc |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001335506300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Leading Innovation and Entrepreneurship Team of Zhejiang Province of China ; Key R&D Program of Zhejiang ; China Manned Spaced Project ; National Science Foundation operated under cooperative agreement by Associated Universities, Inc |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7068]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Feng, Yi; Li, Di; Zhang, Yong-Kun; Tsai, Chao-Wei |
| 作者单位 | 1.Zhejiang Lab, Res Ctr Astron Comp, Hangzhou, Peoples R China 2.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China 3.Chinese Acad Sci, R P China, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing, Peoples R China 6.Univ Nevada, Nevada Ctr Astrophys, Las Vegas, NV 89154 USA 7.Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA 8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 550001, Xinjiang, Peoples R China 9.Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Hubei, Peoples R China 10.Western Sydney Univ, Sch Sci, Penrith, NSW 1797, Australia |
| 推荐引用方式 GB/T 7714 | Feng, Yi,Li, Di,Zhang, Yong-Kun,et al. An Extremely Active Repeating Fast Radio Burst Source in a Likely Nonmagneto-ionic Environment[J]. ASTROPHYSICAL JOURNAL,2024,974(2):296. |
| APA | Feng, Yi.,Li, Di.,Zhang, Yong-Kun.,Tsai, Chao-Wei.,Qu, Yuanhong.,...&Zhu, Yuhao.(2024).An Extremely Active Repeating Fast Radio Burst Source in a Likely Nonmagneto-ionic Environment.ASTROPHYSICAL JOURNAL,974(2),296. |
| MLA | Feng, Yi,et al."An Extremely Active Repeating Fast Radio Burst Source in a Likely Nonmagneto-ionic Environment".ASTROPHYSICAL JOURNAL 974.2(2024):296. |
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