Distributions of the hardness ratio of short and long gamma-ray bursts in different time intervals within the first two seconds
文献类型：期刊论文
| 作者 | Dong YM(董云明)1,2 ; Tan YP(覃一平)1,3
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2005-04-21 |
| 卷号 | 358期号:4页码:1267-1272 |
| ISSN号 | 0035-8711 |
| 关键词 | methods : statistical gamma-rays : bursts |
| 通讯作者 | Dong, YM (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | In the present paper, we investigate the distribution of the hardness ratio (HR) for short and long gamma-ray bursts (GRBs) in different time-scales for the first two seconds. After including and subtracting the background count, we performed a Kolmogorov-Smirnov (K-S) test on the HR distributions of the two classes of GRBs in each time interval. Our analysis shows that the probabilities of the K-S test to the distributions are very small, suggesting that the two classes of bursts are unlikely to arise from the same HR distributions. The result indicates that the two kinds of bursts probably originate from different mechanisms or have different central engines. In addition, we found that the HR of short bursts within the time interval 0-0.96 s changes from hard to soft; the HR of long bursts does not. The two kinds of bursts have different characteristics in the first two seconds, which might be associated with different physical mechanisms. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/358/4/1267 |
| 语种 | 英语 |
| WOS记录号 | WOS:000228179000010 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6992]  |
| 专题 | 云南天文台_星系研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming 650011, China 2.Graduate School of The Chinese Academy of Sciences, Beijing 100039, China 3.Physics Department, Guangxi University, Nanning, Guangxi 530004, China |
| 推荐引用方式 GB/T 7714 | Dong YM,Tan YP. Distributions of the hardness ratio of short and long gamma-ray bursts in different time intervals within the first two seconds[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2005,358(4):1267-1272. |
| APA | Dong YM,&Tan YP.(2005).Distributions of the hardness ratio of short and long gamma-ray bursts in different time intervals within the first two seconds.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,358(4),1267-1272. |
| MLA | Dong YM,et al."Distributions of the hardness ratio of short and long gamma-ray bursts in different time intervals within the first two seconds".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 358.4(2005):1267-1272. |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
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。