TIME EVOLUTION OF FLARES IN GRB 130925A: JET PRECESSION IN A BLACK HOLE ACCRETION SYSTEM
文献类型：期刊论文
| 作者 | Hou, Shu-Jin1,2,3; Liu, Tong1,2,4; Gu, Wei-Min1,2; Lin, Da-Bin5,6; Sun, Mou-Yuan1,2,7,8; Wu, Xue-Feng3 ; Lu, Ju-Fu1,2
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2014-01-20 |
| 卷号 | 781期号:1页码:0 |
| 关键词 | accretion, accretion disks black hole physics gamma-ray burst: individual (GRB 130925A) |
| ISSN号 | 2041-8205 |
| 英文摘要 | GRB 130925A, composed of three gamma-ray emission episodes and a series of orderly flares, has been detected by Swift, Fermi, Konus-Wind, and INTEGRAL. If the third weakest gamma-ray episode can be considered a giant flare, we find that after the second gamma-ray episode observed by INTEGRAL located at about 2000 s, a positive relation exists between the time intervals of the adjacent flares and the time since the episode. We suggest that the second gamma-ray episode and its flares originate from the resumption of the accretion process due to the fragments from the collapsar falling back; such a relation may be related to a hyperaccretion disk around a precessed black hole (BH). We propose that the origin and time evolution of the flares, and the approximately symmetrical temporal structure and spectral evolution of the single flare can be explained well by a jet precession model. In addition, the mass and spin of the BH can be constrained, which indicates a stellar-mass, fast-rotating BH located in the center of GRB 130925A. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY BURSTS ; CENTRAL ENGINE ; 1ST SURVEY ; DISKS ; SWIFT ; LONG |
| 收录类别 | SCI |
| 原文出处 | 10.1088/2041-8205/781/1/L19 |
| 语种 | 英语 |
| WOS记录号 | WOS:000329582400019 |
| 公开日期 | 2014-11-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10615]  |
| 专题 | 紫金山天文台_南极天文中心 |
| 作者单位 | 1.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China 2.Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Fujian, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Guangxi Univ, Dept Phys, Nanning 530004, Guangxi, Peoples R China 6.Guangxi Univ, GXU NAOC Ctr Astrophys & Space Sci, Nanning 530004, Guangxi, Peoples R China 7.Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA 8.Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA |
| 推荐引用方式 GB/T 7714 | Hou, Shu-Jin,Liu, Tong,Gu, Wei-Min,et al. TIME EVOLUTION OF FLARES IN GRB 130925A: JET PRECESSION IN A BLACK HOLE ACCRETION SYSTEM[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,781(1):0. |
| APA | Hou, Shu-Jin.,Liu, Tong.,Gu, Wei-Min.,Lin, Da-Bin.,Sun, Mou-Yuan.,...&Lu, Ju-Fu.(2014).TIME EVOLUTION OF FLARES IN GRB 130925A: JET PRECESSION IN A BLACK HOLE ACCRETION SYSTEM.ASTROPHYSICAL JOURNAL LETTERS,781(1),0. |
| MLA | Hou, Shu-Jin,et al."TIME EVOLUTION OF FLARES IN GRB 130925A: JET PRECESSION IN A BLACK HOLE ACCRETION SYSTEM".ASTROPHYSICAL JOURNAL LETTERS 781.1(2014):0. |
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来源：紫金山天文台
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