Failed gamma-ray bursts and orphan afterglows
文献类型：期刊论文
| 作者 | Huang, YF; Dai, ZG; Lu, T |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2002 |
| 卷号 | 332期号:3页码:735-740 |
| 关键词 | stars : neutron ISM : jets and outflows gamma-rays : bursts |
| 通讯作者 | Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, LCRHEA, Beijing 100039, Peoples R China |
| 英文摘要 | It is believed that orphan afterglow searches can help to measure the beaming angle in gamma-ray bursts (GRBs). Great expectations have been put on this method. We point out that the method is in fact not as simple as we originally expected. As a result of the baryon-rich environment that is common to almost all popular progenitor models, there should be many failed gamma-ray bursts, i.e. fireballs with Lorentz factor much less than 100-1000, but still much larger than unity. In fact, the number of failed gamma-ray bursts may even be much larger than that of successful bursts. Owing to the existence of these failed gamma-ray bursts, there should be many orphan afterglows even if GRBs are due to isotropic fireballs, then the simple discovery of orphan afterglows never means that GRBs are collimated. Unfortunately, to distinguish between a failed-GRB orphan and a jetted but off-axis GRB orphan is not an easy task. The major problem is that the trigger time is unknown. Some possible solutions to the problem are suggested. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000175664400021 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238386]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Huang, YF,Dai, ZG,Lu, T. Failed gamma-ray bursts and orphan afterglows[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2002,332(3):735-740. |
| APA | Huang, YF,Dai, ZG,&Lu, T.(2002).Failed gamma-ray bursts and orphan afterglows.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,332(3),735-740. |
| MLA | Huang, YF,et al."Failed gamma-ray bursts and orphan afterglows".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 332.3(2002):735-740. |
入库方式： OAI收割
来源：高能物理研究所
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