BATSEγ射线暴和太阳硬X射线暴的强度和时间特征  

The Intensity and Temporal Characteristics of BATSE Gamma ray Bursts and Solar Hard X-ray Bursts

作　　者：余文飞[1] 李惕碚[1] 吴枚[1] 宋黎明[1] 

机构地区：[1]中国科学院高能物理研究所宇宙线和高能天体物理实验室,北京100039

出　　处：《天体物理学报》1997年第1期66-72,共7页

基　　金：国家自然科学基金资助课题

摘　　要：本文研究了CGRO卫星上BATSE探测器对硬X天空监测过程中触发和记录到的1 0 0 0多个γ暴和 40 0 0多个太阳硬X射线暴的强度和时间性质 ,发现它们的强度分布相似 ,这也许意味着硬X射线天空中两种主要的爆发现象机制相似 ,同时对将γ暴的强度分布作为其宇宙学起源的证据提出了疑问 .对太阳暴的持续时间分析表明 ,其强度和持续时间呈正相关 ,而γ暴是弱负相关 .太阳暴的强度和持续时间在BATSE运行过程中有长时标变化 。We have analyzed data of more than 4000 solar hard X ray bursts and 1000 gamma ray bursts detected by CGRO/BATSE during 1991-1995 to investigate their intensity distribution and their temporal characteristics.We have found the similarity between intensity distributions of BATSE gamma ray bursts and solar hard X ray bursts. This might indicate these two hard X ray burst phenomena have similarity in mechanism. This gives a negative support to the cosmological model of gamma ray bursts. The intensity and duration of solar flares have positive correlation, which is different from gamma ray bursts, and the average intensity and duration of solar flares are correlated with the solar activities.

关 键 词：Γ射线暴 太阳 硬X射线暴 强度 时间 

分 类 号：P163[天文地球—天文学]