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强磁场扰动对宇宙线调制的统计研究
Alternative TitleSTATISTICAL STUDY OF CSOMIC RAY MODULATION PRODUCED BY INTERPLANETARY STRONG MAGNETIC FIELD DISTURBANCE
郭维吉; 章公亮; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication空间科学学报
1995
Volume15Issue:4Pages:295-300
ISSN0254-6124
Language中文
Keyword速度间断 激波 强磁场扰动 宇宙线调制
Abstract对1978-1982太阳活动高年时发生的激波、强磁场扰动及激波与强磁场扰动共存这三类事件引起的宇宙线变化进行了统计研究,得到如下结果:(1)激波与强磁场扰动共存时引起的宇宙线强度下降最为显著;只有激波或强磁场扰动时,宇宙线的强度变化相对较小;(2)标志速度间断的激波是产生宇宙线Forbush下降的重要因素;(3)速度间断在强磁场扰动对宇宙线的调制中可能起一个触发的作用.
Other AbstractThree categories of interplanetary disturbances have been chosen from the period 1978--1982 when solar activity was high. They are:(i)shock wave;(ii)strong magnetic field disturbance;(iii)strong magnetic field disturbance behind shock wave. The cosmic ray variations produced by them have been studied statistically.The following results are obtained:(1)cosmic ray decrease resulted from the strong magnetic field disturbance is very obvious when there is a shock wave before it,but the cosmic ray decrease is relativelysmall when only shock wave or strong magnetic disturbance exists; (2) the shock wave which indicates the speed discontinuity is a vital factor resulting the Forbush decrease; (3) the speed discontinuity may take a role of trigger in the process of the cosmic ray modulation produced by the strong magnetic field disturbance.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1229
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
郭维吉,章公亮,北京8701信箱. 强磁场扰动对宇宙线调制的统计研究[J]. 空间科学学报,1995,15(4):295-300.
APA 郭维吉,章公亮,&北京8701信箱.(1995).强磁场扰动对宇宙线调制的统计研究.空间科学学报,15(4),295-300.
MLA 郭维吉,et al."强磁场扰动对宇宙线调制的统计研究".空间科学学报 15.4(1995):295-300.
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