Spectropolarimetric variability in the repeating fast radio burst source FRB20180301A
文献类型：期刊论文
| 作者 | Kumar, P.2,12; Luo, R.3,4; Price, D. C.5; Shannon, R. M.6,12; Deller, A. T.12; Bhandari, S.7,11; Feng, Y.1; Flynn, C.12; Jiang, J. C.10; Uttarkar, P. A.12 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2023-10-10 |
| 卷号 | 526期号:3页码:3652-3672 |
| 关键词 | methods: data analysis methods: observational fast radio bursts |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stad2969 |
| 产权排序 | 11 |
| 英文摘要 | As the sample size of repeating fast radio bursts (FRBs) has grown, an increasing diversity of phenomenology has emerged. Through long-term multi-epoch studies of repeating FRBs, it is possible to assess which phenomena are common to the population and which are unique to individual sources. We present a multi-epoch monitoring campaign of the repeating FRB source 20180301A using the ultra-wideband low (UWL) receiver observations with Murriyang, the Parkes 64-m radio telescope. The observations covered a wide frequency band spanning approximately 0.7-4GHz, and yielded the detection of 46 bursts. None of the repeat bursts displayed radio emission in the range of 1.8-4 GHz, while the burst emission peaked at 1.1 GHz. We discover evidence for secular trends in the burst dispersion measure, indicating a decline at a rate of . We also found significant variation in the Faraday rotation measure of the bursts across the follow-up period, including evidence of a sign reversal. While a majority of bursts did not exhibit any polarization, those that did show a decrease in the linear polarization fraction as a function of frequency, consistent with spectral depolarization due to scattering, as observed in other repeating FRB sources. Surprisingly, no significant variation in the polarization position angles was found, which is in contrast with earlier measurements reported for the FRB source. We measure the burst rate and sub-pulse drift rate variation and compare them with the previous results. These novel observations, along with the extreme polarization properties observed in other repeating FRBs, suggest that a sub-sample of FRB progenitors possess highly dynamic magneto-ionic environments. |
| WOS关键词 | FREQUENCY-DEPENDENT POLARIZATION ; MAGNETO-IONIC VARIATIONS ; PULSAR ROTATION MEASURES ; FRB 121102 ; FARADAY-ROTATION ; SUPERLUMINOUS SUPERNOVAE ; DISPERSION MEASURE ; MODEL SELECTION ; PSR B1259-63 ; HOST GALAXY |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001087206800006 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5592]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 |
| 通讯作者 | Kumar, P.; Luo, R.; Price, D. C. |
| 作者单位 | 1.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China 2.Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-7610001 Rehovot, Israel 3.CSIRO Space & Astron, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia 4.Guangzhou Univ, Sch Phys & Mat Sci, Dept Astron, Guangzhou 510006, Peoples R China 5.Curtin Univ, Int Ctr Radio Astron Res, Kent St, Bentley, WA 6102, Australia 6.ARC Ctr Excellence Gravitat Wave Discovery OzGrav, Hawthorn, Vic 3122, Australia 7.Netherlands Inst Radio Astron, ASTRON, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands 8.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 9.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 10.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kumar, P.,Luo, R.,Price, D. C.,et al. Spectropolarimetric variability in the repeating fast radio burst source FRB20180301A[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,526(3):3652-3672. |
| APA | Kumar, P..,Luo, R..,Price, D. C..,Shannon, R. M..,Deller, A. T..,...&Zhang, S. B..(2023).Spectropolarimetric variability in the repeating fast radio burst source FRB20180301A.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,526(3),3652-3672. |
| MLA | Kumar, P.,et al."Spectropolarimetric variability in the repeating fast radio burst source FRB20180301A".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 526.3(2023):3652-3672. |
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来源：新疆天文台
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