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GRB 240529A: A Tale of Two Shocks

文献类型：期刊论文

作者Sun, Tian-Rui39; Geng, Jin-Jun39; Yan, Jing-Zhi39; Hu, You-Dong37,38; Wu, Xue-Feng36,39; Castro-Tirado, Alberto J.35,37; Yang, Chao39; Ping, Yi-Ding39; Hu, Chen-Ran34; Xu, Fan34
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2024-12-01
卷号976期号:2
ISSN号2041-8205
DOI10.3847/2041-8213/ad85da
产权排序第13完成单位
文献子类Article
英文摘要Thanks to the rapidly increasing time-domain facilities, we are entering a golden era of research on gamma-ray bursts (GRBs). In this Letter, we report our observations of GRB 240529A with the Burst Optical Observer and Transient Exploring System, the 1.5 m telescope at Observatorio de Sierra Nevada, the 2.5 m Wide Field Survey Telescope of China, the Large Binocular Telescope, and the Telescopio Nazionale Galileo. The prompt emission of GRB 240529A shows two comparable energetic episodes separated by a quiescence time of roughly 400 s. Combining all available data on the GRB Coordinates Network, we reveal the simultaneous apparent X-ray plateau and optical rebrightening around 103-104 s after the burst. Rather than the energy injection from the magnetar as widely invoked for similar GRBs, the multiwavelength emissions could be better explained as two shocks launched from the central engine separately. The optical peak time and our numerical modeling suggest that the initial bulk Lorentz factor of the later shock is roughly 50, which indicates that the later jet should be accretion driven and have a higher mass loading than a typical one. The quiescence time between the two prompt emission episodes may be caused by the transition between different accretion states of a central magnetar or black hole, or the fallback accretion process. A sample of similar bursts with multiple emission episodes in the prompt phase and sufficient follow-up could help to probe the underlying physics of GRB central engines.
学科主题天文学 ; 星系与宇宙学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词GAMMA-RAY BURSTS ; HYPERACCRETING BLACK-HOLE ; SHALLOW DECAY PHASE ; ENERGY INJECTION ; ACCRETION MODELS ; DYNAMICAL MODEL ; AFTERGLOW ; EVOLUTION ; EMISSION ; ASTROPY
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12273113]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12321003]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12393812]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12393813]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12025303]; National Natural Science Foundation of China[2020SKA0120302]; National Natural Science Foundation of China[2022SKA0130100]; National SKA Program of China[XDB0550400]; Strategic Priority Research Program of the Chinese Academy of Sciences[114332KYSB20210018]; International Partnership Program of Chinese Academy of Sciences[2023331]; Youth Innovation Promotion Association[PID2020-118491GB-I00]; Youth Innovation Promotion Association[PID2023-151905OB-I00]; Spanish Ministry[P20_010168]; Spanish Ministry[CEX2021-001131-S]; Junta de Andalucia[20179ZF5KS]; PRIN-MIUR; INAF project Premiale Supporto Arizona Italia
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001361186800001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12273113, 12321003, 12393812, 12393813, 12025303] ; National Natural Science Foundation of China[2020SKA0120302, 2022SKA0130100] ; National SKA Program of China[XDB0550400] ; Strategic Priority Research Program of the Chinese Academy of Sciences[114332KYSB20210018] ; International Partnership Program of Chinese Academy of Sciences[2023331] ; Youth Innovation Promotion Association[PID2020-118491GB-I00, PID2023-151905OB-I00] ; Spanish Ministry[P20_010168, CEX2021-001131-S] ; Junta de Andalucia[20179ZF5KS] ; PRIN-MIUR ; INAF project Premiale Supporto Arizona Italia
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27797]  
专题云南天文台_丽江天文观测站（南方基地）
作者单位1.National Optical Astronomy Observatory (NSF's National Optical-Infrared Astronomy Research Laboratory), 950 N Cherry Ave., Tucson, AZ 85726, USA
2.State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, People's Republic of China;
3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, People's Republic of China;
4.McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, PA 15213, USA;
5.George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, TX 77843-4242, USA;
6.Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843-4242, USA;
7.Institute of Deep Space Sciences, Deep Space Exploration Laboratory, Hefei 230026, People's Republic of China;
8.University of Messina, MIFT Department, Via F. S. D'Alcontres 31, Papardo, 98166 Messina, Italy;
9.INAF—Osservatorio Astronomico di Roma, Via di Frascati 33, 00040 Monte Porzio Catone, RM, Italy;
10.Università degli Studi dell'Insubria, Dipartimento di Scienza e Alta Tecnologia, via Valleggio 11, I-22100 Como, Italy;
推荐引用方式
GB/T 7714		 Sun, Tian-Rui,Geng, Jin-Jun,Yan, Jing-Zhi,et al. GRB 240529A: A Tale of Two Shocks[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,976(2).
APA Sun, Tian-Rui.,Geng, Jin-Jun.,Yan, Jing-Zhi.,Hu, You-Dong.,Wu, Xue-Feng.,...&Dai, Zi-Gao.(2024).GRB 240529A: A Tale of Two Shocks.ASTROPHYSICAL JOURNAL LETTERS,976(2).
MLA Sun, Tian-Rui,et al."GRB 240529A: A Tale of Two Shocks".ASTROPHYSICAL JOURNAL LETTERS 976.2(2024).

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