Institutional Repository System Of Yunnan Observatories, CAS
| Synchrotron Radiation Dominates the Extremely Bright GRB 221009A | |
Yang, Jun1,2; Zhao XH(赵晓红)3,4,5 ; Yan, Zhenyu1,2; Wang, Xiangyu Ivy1,2; Zhang, Yan-Qiu6,7; An, Zheng-Hua6; Cai, Ce8; Li, Xin-Qiao6; Li, Zihan1; Liu, Jia-Cong6,7; Liu, Zi-Ke1,2; Ma, Xiang6; Meng, Yan-Zhi1,2; Peng, Wen-Xi6; Qiao, Rui6; Shao, Lang9; Song, Li-Ming6; Tan, Wen-Jun6,7; Wang, Ping6; Wang, Chen-Wei6,7; Wen, Xiang-Yang6; Xiao, Shuo10; Xue, Wang-Chen6,7; Yang, Yu-Han11; Yin, Yi-Han Iris12; Zhang, Bing13; Zhang, Fan6; Zhang, Shuai9; Zhang, Shuang-Nan6; Zheng, Chao6,7; Zheng, Shi-Jie6; Xiong, Shao-Lin6; Zhang, Bin-Bin1,2,14
| |
| 发表期刊 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 2023-04-01 | |
| 卷号 | 947期号:1 |
| DOI | 10.3847/2041-8213/acc84b |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 摘要 | The brightest gamma-ray burst, GRB 221009A, has spurred numerous theoretical investigations, with particular attention paid to the origins of ultrahigh-energy TeV photons during the prompt phase. However, analyzing the mechanism of radiation of photons in the similar to MeV range has been difficult because the high flux causes pileup and saturation effects in most GRB detectors. In this Letter, we present systematic modeling of the time-resolved spectra of the GRB using unsaturated data obtained from the Fermi Gamma-ray Burst Monitor (precursor) and SATech-01/GECAM-C (main emission and flare). Our approach incorporates the synchrotron radiation model, which assumes an expanding emission region with relativistic speed and a global magnetic field that decays with radius, and successfully fits such a model to the observational data. Our results indicate that the spectra of the burst are fully in accordance with a synchrotron origin from relativistic electrons accelerated at a large emission radius. The lack of thermal emission in the prompt emission spectra supports a Poynting flux-dominated jet composition. |
| 资助项目 | National Key Research and Development Programs of China[2018YFA0404204] ; National Key Research and Development Programs of China[2021YFA0718500] ; National Key Research and Development Programs of China[2022YFF0711404] ; National Key Research and Development Programs of China[2022SKA0130102] ; National Natural Science Foundation of China[11833003] ; National Natural Science Foundation of China[U2038105] ; National Natural Science Foundation of China[U1831135] ; National Natural Science Foundation of China[12121003] ; National Natural Science Foundation of China[12273042] ; National SKA Program of China[2022SKA0130100] ; China Manned Space Project[CMS-CSST-2021-B11] ; Fundamental Research Funds for the Central Universities ; Program for Innovative Talents ; Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences[XDB23040400] |
| 项目资助者 | National Key Research and Development Programs of China[2018YFA0404204, 2021YFA0718500, 2022YFF0711404, 2022SKA0130102] ; National Natural Science Foundation of China[11833003, U2038105, U1831135, 12121003, 12273042] ; National SKA Program of China[2022SKA0130100] ; China Manned Space Project[CMS-CSST-2021-B11] ; Fundamental Research Funds for the Central Universities ; Program for Innovative Talents ; Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences[XDB23040400] |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 星系与宇宙学 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 2041-8205 |
| URL | 查看原文 |
| WOS记录号 | WOS:000971729700001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY BURST ; PROMPT EMISSION ; PHYSICAL ORIGINS ; SPECTRAL CATALOG ; BREAKS ; MODEL ; PHOTOSPHERES ; CONSISTENCY ; EFFICIENT ; OUTFLOW |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/25903 |
| 专题 | 星系类星体研究组 中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Zhao XH(赵晓红); Xiong, Shao-Lin; Zhang, Bin-Bin |
| 作者单位 | 1.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, People's Republic of China; 2.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, People's Republic of China; 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, People's Republic of China; [email protected]; 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing, People's Republic of China; 5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, People's Republic of China; 6.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People'S Republic Of China; [email protected]; 7.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 8.College of Physics and Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China; 9.College of Physics, Hebei Normal University, Shijiazhuang 050024, People's Republic of China; 10.Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang 550001, People'S Republic Of China; 11.Department of Physics, University of Rome 12.School of Physics, Nanjing University, Nanjing 210093, People's Republic of China; 13.Department of Physics and Astronomy, University of Nevada Las Vegas, NV 89154, USA; [email protected]; 14.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, People's Republic of China |
| 通讯作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Yang, Jun,Zhao XH,Yan, Zhenyu,et al. Synchrotron Radiation Dominates the Extremely Bright GRB 221009A[J]. ASTROPHYSICAL JOURNAL LETTERS,2023,947(1). |
| APA | Yang, Jun.,Zhao XH.,Yan, Zhenyu.,Wang, Xiangyu Ivy.,Zhang, Yan-Qiu.,...&Zhang, Bin-Bin.(2023).Synchrotron Radiation Dominates the Extremely Bright GRB 221009A.ASTROPHYSICAL JOURNAL LETTERS,947(1). |
| MLA | Yang, Jun,et al."Synchrotron Radiation Dominates the Extremely Bright GRB 221009A".ASTROPHYSICAL JOURNAL LETTERS 947.1(2023). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Synchrotron Radiatio（1331KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论