KMS of Xinjiang Astronomical Observatory, CAS
| GRB 211024B: An Ultra-long GRB Powered by Magnetar | |
| Fu, Shao-Yu1,2; Xu, Dong1; Lei, Wei-Hua3; Postigo, Antonio de Ugarte4,5; Malesani, Daniele B.6,7; Kann, David Alexander8,9; Jakobsson, Pall10; Fynbo, Johan P. U.6,11; Maiorano, Elisabetta12; Rossi, Andrea12; Paris, Diego13; Liu, Xing1,2; Jiang, Shuai-Qing1,2; Lu, Tian-Hua1,2; An, Jie1,2; Zhu, Zi-Pei1; Gao, Xing14; Wei, Jian-Yan1,2 | |
| 2024-12-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
 |
| ISSN | 0004-637X |
| Volume | 977Issue:2Pages:197 |
| Contribution Rank | 14 |
| Abstract | Ultra-long gamma-ray bursts are characterized by exceptionally long-duration central engine activities, with characteristic timescales exceeding 1000 s. We present ground-based optical afterglow observations of the ultra-long gamma-ray burst GRB 211024B, detected by Swift. Its X-ray light curve exhibits a characteristic "internal plateau" with a shallow decay phase lasting approximately similar to 15 ks, followed by a steep decline (alpha drop similar to -7.5). Moreover, the early optical emission predicted by the late r-band optical afterglow is significantly higher than the observed value, indicating an external shock with energy injection. To explain these observations, we propose a magnetar central engine model. The magnetar collapses into a black hole due to spin-down or hyperaccretion, leading to the observed steep break in the X-ray light curve. The afterglow model fitting reveals that the afterglow injection luminosity varies with different assumptions of the circumburst medium density, implying different potential energy sources. For the interstellar medium case with a fixed injection end time, the energy may originate from the magnetar's dipole radiation. However, in other scenarios, relativistic jets produced by the magnetar/black hole system could be the primary energy source. |
| DOI | 10.3847/1538-4357/ad8886 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | GAMMA-RAY BURST ; TIDAL DISRUPTION EVENT ; X-RAY ; LIGHT CURVES ; ELECTROMAGNETIC COUNTERPART ; ENERGY INJECTION ; EARLY AFTERGLOWS ; 2-COMPONENT JET ; CENTRAL ENGINES ; EMISSION |
| Funding Project | Instituto de Astrofisica de Andalucia (IAA) ; University of Copenhagen ; MINECO/FEDER[AyA2017-84089.7] ; China Manned Space Project[CMS-CSST-2021-A13] ; China Manned Space Project[CMS-CSST-2021-B11] ; National Natural Science Foundation of China[12473012] ; European Research Council (ERC) under the European Union[725246] ; European Union (ERC)[101071865] ; Danish National Research Foundation[DNRF140] ; PRIN-MIUR[20179ZF5KS] ; INAF project Premiale Supporto Arizona Italia |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001375948500001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | Instituto de Astrofisica de Andalucia (IAA) ; University of Copenhagen ; MINECO/FEDER ; China Manned Space Project ; National Natural Science Foundation of China ; European Research Council (ERC) under the European Union ; European Union (ERC) ; Danish National Research Foundation ; PRIN-MIUR ; INAF project Premiale Supporto Arizona Italia |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7276 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Fu, Shao-Yu; Lei, Wei-Hua |
| Affiliation | 1.Chinese Acad Sci, Key Lab Space Astron & Technol, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Huazhong Univ Sci & Technol, Sch Phys, Dept Astron, Wuhan 430074, Peoples R China 4.Univ Cote Azur, Observ Cote Azur, CNRS, F-06304 Nice, France 5.Aix Marseille Univ, CNRS, LAM, Marseille, France 6.Univ Copenhagen, Niels Bohr Inst, Jagtvej 155, DK-2200 Copenhagen N, Denmark 7.Radboud Univ Nijmegen, Dept Astrophys, IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands 8.Inst Astrofis Andalucia, Glorieta Astron S-N, Granada 18008, Spain 9.Goethe Univ Frankfurt, Giersch Sci Ctr, Hessian Res Cluster ELEMENTS, Max Von Laue-Str 12,Campus Riedberg, D-60438 Frankfurt, Germany 10.Univ Iceland, Sci Inst, Ctr Astrophys & Cosmol, Dunhagi 5, IS-107 Reykjavik, Iceland 11.Cosm Dawn Ctr DAWN, Lyngby, Denmark 12.INAF Osservatorio Astrofis & Sci Spazio, Via Piero Gobetti 93-3, I-40129 Bologna, Italy 13.INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy 14.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China |
| Recommended Citation GB/T 7714 | Fu, Shao-Yu,Xu, Dong,Lei, Wei-Hua,et al. GRB 211024B: An Ultra-long GRB Powered by Magnetar[J]. ASTROPHYSICAL JOURNAL,2024,977(2):197. |
| APA | Fu, Shao-Yu.,Xu, Dong.,Lei, Wei-Hua.,Postigo, Antonio de Ugarte.,Malesani, Daniele B..,...&Wei, Jian-Yan.(2024).GRB 211024B: An Ultra-long GRB Powered by Magnetar.ASTROPHYSICAL JOURNAL,977(2),197. |
| MLA | Fu, Shao-Yu,et al."GRB 211024B: An Ultra-long GRB Powered by Magnetar".ASTROPHYSICAL JOURNAL 977.2(2024):197. |
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| Fu-2024-GRB 211024B_（1925KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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