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磁场偶极化过程中磁尾的电离层离子加速:I离子分布函数的演化
Alternative TitleA THEORETICAL STUDY ON THE ACCELERATION OF OUT-FLOWING IONS IN THE THE MAGNETOTAIL:I VARIATION OF ION DISTRIBUTION FUNCTION
史建魁; 刘振兴; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication地球物理学报
2000
Volume43Issue:1Pages:11-18
ISSN0001-5733
Language中文
Keyword电离层 分布函数 磁尾 磁场 离子 偶极化过程
Abstract采用动力学方程,对亚暴期间磁尾磁场向偶极形弛豫过程中离子分布函数的演化进行了模拟研究,主要结果为:(1)妆始时刻分布函数为相对于速度呈指数下降的离子束,在随时间变化过程中,逐渐变为相对于速度(包括平行和垂直速度)的单峰结构,且单峰在速度空间的位置随时间的变化而向高速方向移动;(2)在速度空间中平行于磁场方向上单峰向高速方向移动得较慢,在垂直方向上移动得较快;(3)轻离子分布函数峰值的位置较得离子随
Other AbstractBased on the dynamic equation,the variation of up-flowing ions distribution function during the dipolarizition of the substonn in the magnetotail is simulated.The results show that (1)the ion distribution function,initially decreasing exponentionly with increasing speed becomes single peak distribution;the peak moves in the direction of speed increasing,(2)the peak moves more quickly along vthan that along V,(3)the peak moves more quickly for lighter ions than that for heavier ions,(4)The more the initial energy is,the more quickly the peak move,(5) the ion moves as an Earth-ward flow during the dipolarizition.The acceleration of the up-flowing ions in the induced electrical field is discussed,too.
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/122/1332
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
史建魁,刘振兴,北京8701信箱. 磁场偶极化过程中磁尾的电离层离子加速:I离子分布函数的演化[J]. 地球物理学报,2000,43(1):11-18.
APA 史建魁,刘振兴,&北京8701信箱.(2000).磁场偶极化过程中磁尾的电离层离子加速:I离子分布函数的演化.地球物理学报,43(1),11-18.
MLA 史建魁,et al."磁场偶极化过程中磁尾的电离层离子加速:I离子分布函数的演化".地球物理学报 43.1(2000):11-18.
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