Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts
文献类型：期刊论文
| 作者 | Deng JG(邓家干); Huang RT(黄仁堂) |
| 刊名 | 天文研究与技术
 |
| 出版日期 | 2007-03 |
| 卷号 | 4期号:1页码:1-10 |
| 关键词 | 伽玛射线暴 光变曲线 观测数据统计 |
| ISSN号 | 1672-7673 |
| 其他题名 | 再探伽玛射线暴中能量与脉冲宽度的依赖关系 |
| 产权排序 | 第二完成单位 |
| 中文摘要 | 探索来源于BATSE(http://cossc:gsfc:nasa:gov/batse)的GRB(Gamma-Ray Burst,伽玛射线暴)观测数据的半峰宽度(FWHM)与能量之间的关系,基于64个用KRL函数模型(即,文[1]中的(22)式)能很好地拟合的FRDE(Fast Rise and Exponential Decay,快速上升指数下降)型脉冲样本。发现64个样本中有63个的半峰宽度(FWHM)与能量之间的关系属于平台—幂率—平台型结构或峰型结构。64个样本的半峰宽度(FWHM)与能量之间的关系在观测中可详细分为5种类型:a)有34个样本为幂率形式关系;b)18个样本为低能段平台关系;c)有7个样本为高能段平台关系;d)4个样本为峰型结构关系;e)另外有1个样本为其他结构。结果表明:GRB观测数据的半峰宽度(FWHM)与能量之间的确存在有幂率的关系。此结果进一步确认了文[2](Qin etal 2005)的观点,即半峰宽度(FWHM)与能量之间的关系是由于火球模型的多普勒效应(Doppler effect)导致的。 |
| 英文摘要 | The relationship between the pulse FWHM (full-widths at half maximum) and the energy of gammaray bursts (GRBs) is explored based on the observed data from BATSE data base (http ://cossc:gsfc:nasa:gov/atse/). Based on a sample of 64 FRED (fast rise and exponential decay) pulse bursts better fitted with the KRL model (refer equation (22) in [1]), it is found that 63, out of the 64 sources, belong to either the platformpower-law-platform feature class or the peaked feature group. The classifications for 64 sources could be sorted into five models in detail: a)a power law range could be observed in 34 sources; b)a lower band platform could be observed or suspected in 18 bursts; c)a higher band platform could be observed or suspected in 7 sources; d)a peaked feature could be observed or suspected in 4 GRBs ;e)the other model from the four types above could be observed in 1 sources .The result suggests that there exists a power law relationship between the pulse FWHM of GRBs and the energy .And the result confirms the points from Qin et al (2005)[2] that the relationship is due to the Doppler effect of fireballs. |
| 学科主题 | 天文学 |
| 分类号 | P172.3 |
| 收录类别 | CSCD |
| 语种 | 英语 |
| CSCD记录号 | CSCD:2751914 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/7135]  |
| 专题 | 云南天文台_星系研究组 |
| 推荐引用方式 GB/T 7714 | Deng JG,Huang RT. Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts[J]. 天文研究与技术,2007,4(1):1-10. |
| APA | 邓家干,&黄仁堂.(2007).Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts.天文研究与技术,4(1),1-10. |
| MLA | 邓家干,et al."Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts".天文研究与技术 4.1(2007):1-10. |
入库方式： OAI收割
来源：云南天文台
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