A Repeating Fast Radio Burst Source in a Low-luminosity Dwarf Galaxy
文献类型：期刊论文
| 作者 | Hewitt, Dante M.27; Bhardwaj, Mohit26; Gordon, Alexa C.9,10; Kirichenko, Aida8; Nimmo, Kenzie2; Bhandari, Shivani3,4,5,27; Cognard, Ismael6; Fong, Wen-fai9,10; de Paz, Armando Gil7,17; Gopinath, Akshatha27 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 977期号:1页码:L4 |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ad8ce1 |
| 产权排序 | 29 |
| 英文摘要 | We present the localization and host galaxy of FRB 20190208A, a repeating source of fast radio bursts (FRBs) discovered using CHIME/FRB. As part of the Pinpointing REpeating ChIme Sources with EVN dishes repeater localization program on the European VLBI Network (EVN), we monitored FRB 20190208A for 65.6 hr at similar to 1.4 GHz and detected a single burst, which led to its very long baseline interferometry localization with 260 mas uncertainty (2 sigma). Follow-up optical observations with the MMT Observatory (i greater than or similar to 25.7 mag (AB)) found no visible host at the FRB position. Subsequent deeper observations with the Gran Telescopio Canarias, however, revealed an extremely faint galaxy (r = 27.32 +/- 0.16 mag), very likely (99.95%) associated with FRB 20190208A. Given the dispersion measure of the FRB (similar to 580 pc cm-3), even the most conservative redshift estimate ( zmax similar to 0.83 ) implies that this is the lowest-luminosity FRB host to date (less than or similar to 108 L circle dot), even less luminous than the dwarf host of FRB 20121102A. We investigate how localization precision and the depth of optical imaging affect host association and discuss the implications of such a low-luminosity dwarf galaxy. Unlike the other repeaters with low-luminosity hosts, FRB 20190208A has a modest Faraday rotation measure of a few tens of rad m-2, and EVN plus Very Large Array observations reveal no associated compact persistent radio source. We also monitored FRB 20190208A for 40.4 hr over 2 yr as part of the Extragalactic Coherent Light from Astrophysical Transients repeating FRB monitoring campaign on the Nan & ccedil;ay Radio Telescope and detected one burst. Our results demonstrate that, in some cases, the robust association of an FRB with a host galaxy will require both high localization precision and deep optical follow-up. |
| WOS关键词 | CORE-COLLAPSE SUPERNOVAE ; HOST GALAXY ; FRB 121102 ; STAR-FORMATION ; MILLIARCSECOND LOCALIZATION ; ASTRONOMICAL POLARIMETRY ; DISPERSION MEASURE ; PULSAR ; REDSHIFT ; POPULATION |
| 资助项目 | Canada Excellence Research Chairs, Government of Canada (CERC)https://doi.org/10.13039/501100002784 |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001369654000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Canada Excellence Research Chairs, Government of Canada (CERC)https://doi.org/10.13039/501100002784 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7300]  |
| 专题 | 脉冲星研究团组 射电天文研究室_利用南山26米射电望远镜观测数据的文章 |
| 通讯作者 | Hessels, Jason W. T. |
| 作者单位 | 1.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, S-43992 Onsala, Sweden 2.MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA 3.Netherlands Inst Radio Astron, ASTRON, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands 4.Joint Inst VLBI ERIC, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands 5.Australia Telescope Natl Facil, CSIRO Space & Astron, POB 76, Epping, NSW 1710, Australia 6.Univ Orleans, Univ PSL, Observ Radioastron Nancay, Observ Paris,CNRS, Nancay, France 7.Univ Complutense Madrid, Fac CC Fis, Dept Fis Tierra & Astrofis, E-28040 Madrid, Spain 8.Univ Nacl Autonoma Mexico, Inst Astron, Apdo Postal 877, Ensenada 22800, Baja California, Mexico 9.Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA 10.Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA |
| 推荐引用方式 GB/T 7714 | Hewitt, Dante M.,Bhardwaj, Mohit,Gordon, Alexa C.,et al. A Repeating Fast Radio Burst Source in a Low-luminosity Dwarf Galaxy[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,977(1):L4. |
| APA | Hewitt, Dante M..,Bhardwaj, Mohit.,Gordon, Alexa C..,Kirichenko, Aida.,Nimmo, Kenzie.,...&Yuan, Jianping P..(2024).A Repeating Fast Radio Burst Source in a Low-luminosity Dwarf Galaxy.ASTROPHYSICAL JOURNAL LETTERS,977(1),L4. |
| MLA | Hewitt, Dante M.,et al."A Repeating Fast Radio Burst Source in a Low-luminosity Dwarf Galaxy".ASTROPHYSICAL JOURNAL LETTERS 977.1(2024):L4. |
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