两类γ暴的谱形和光变曲线的统计差异
Statistical Distinctions of the Spectra and Light Curves Between Two Classes of Gamma-Ray Bursts
查看参考文献14篇
|
文摘
|
使用current BATSE catalog中的一部分数据,定义了2个分别反映γ射线暴的能谱形和光变曲线的物理量FR和TR,同时对它们的分布作了统计分析,发现对于两类不同的γ射线暴,它们的分布存在统计上的较为明显的差异.这意味着两类暴可能产生于不同的辐射区域,两类暴的暴源可能有本质的差异,这些结果支持了把γ射线暴分为长暴和短暴的分类方法. |
|
其他语种文摘
|
We define two quantities, FR and TR, which reflect the shapes of spectra and light curves of gamma-ray bursts, respectively. We employ the current BATSE catalog data, and make a statistical analysis. We find that the distribution of the two quantities for two classes of gamma-ray bursts are different. We present a brief discussion to the results. Based on our results and the discussion, we conclude that two classes of bursts may be generated from different sizes of emission regions. It seems that the difference of the two kinds of sources is intrinsic. Our results support the most accepted taxonomy of gamma-ray bursts. |
|
来源
|
天文研究与技术
,2004,1(2):77-83 【核心库】
|
|
关键词
|
γ射线暴
;
观测数据
;
物理量(FR和TR)
;
统计分析
|
|
地址
|
云南师范大学物电学院, 云南, 昆明, 650092
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1672-7673 |
|
学科
|
天文学 |
|
基金
|
国家自然科学基金
;
国家教育部科学技术研究重点项目
;
云南省自然科学基金
|
|
文献收藏号
|
CSCD:1869108
|
参考文献 共
14
共1页
|
|
1.
Klebesadel R W. Observations of Gamma-Ray Bursts of Cosmic Orgin[J].
ApJ,1973,182:L85-L88
|
被引
35
次
|
|
|
|
|
2.
Marani G. On Similarities Among GRBs[C].
On Similarities Among GRBs,1997,29(2):839
|
被引
1
次
|
|
|
|
|
3.
Link B. Prevalent Properties of Gamma-Ray Burst Variability[J].
ApJ,1993,408:L81-L84
|
被引
5
次
|
|
|
|
|
4.
Nemiroff R. Gamma-Ray Bursts are Time-Asymmetric[J].
ApJ,1994,423:432-435
|
被引
1
次
|
|
|
|
|
5.
Mitrofanov I G. The Average Intensity and Spectral Evolution of BATSE Cosmic Gamme-Ray bursts[J].
ApJ,1996,459:570-578
|
被引
3
次
|
|
|
|
|
6.
Norris J. Attributes of Pulses in Long Bright Gamma-Ray Bursts[J].
ApJ,1996,459:393-412
|
被引
6
次
|
|
|
|
|
7.
Desai U D. Morphological Study of the Time Histories of Gamma-Ray Bursts.
Ap&SS.,1981,75:15-20
|
被引
1
次
|
|
|
|
|
8.
Lee A. D.
ApJs.,2000,131:1-19
|
被引
15
次
|
|
|
|
|
9.
Kippen M. COMPTEL Measurements of MeV Gamma-Ray burst Spectra[C].
COMPTEL Measurements of MeV Gamma-Ray burst Spectra,1996,384:197
|
被引
1
次
|
|
|
|
|
10.
Dingus B. EGRET Observations of GeV Emission from Gamma-Ray Bursts[C].
EGRET Observations of GeV Emission from Gamma-Ray Bursts,1997,21:29
|
被引
1
次
|
|
|
|
|
11.
Norris J. Spectral Evolution in Gamma-Ray bursts 26th COSPAR[C].
Toulouse,France,Adv.Space Res.,1986,6(4):19
|
被引
2
次
|
|
|
|
|
12.
Ford L. BATSE Observations of Gamma-Ray bursts Spectra.
ApJ.,1995,439:307-321
|
被引
2
次
|
|
|
|
|
13.
Fishman G. BATSE Observations of Gamma-ray bursts Spectra.
ApJ.,1995,439:307-321
|
被引
2
次
|
|
|
|
|
14.
Kouveliotou C. Identification of Two Classes of Gamma-Ray bursts[J].
ApJ,1993,413:L101-L104
|
被引
56
次
|
|
|
|
|
了解气象卫星更多信息，请访问