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太阳风中非线性离子波研究的解析方法Ⅱ
Alternative TitleAnalytical Method in the Study of Nonlinear Ion Acoustic Waves in the Magnetized Plasma of Solar Wind,Ⅱ
冯学尚; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication吉首大学学报(自然科学版)
1996
Volume17Issue:4Pages:6-10
ISSN1007-2985
Language中文
Keyword太阳风磁化等离子体 电子捕获效应 非线性静电离子声波 解析方法
Abstract本文从MHD方程组出发,推导了太阳风磁化等离子体中非线性静电离子声波孤立子传播的非线性控制方程,考虑电子捕获效应,使用解析方法得到了扰动位势的精确解,应用得到的精确解讨论了各种等离子体参数情况下孤立子形成的条件。
Other AbstractThe present paper is a continuation of the author s former part Ⅰ, The aim of this paper is to discuss the trapped electron effects on the formation and characteristics of the ion acoustic solitary waves in the magnetized plasma of solar wind. By using the analytical method the exact Solutions for the perturbed electric potential are obtained. The results show that although our present cases conform to the conclusions in that the waves propagate approximately perdendicular to the magnetic field, the wave amplitude is very small compared to the wave width. Thus this kind of acoustic wave is generally difficult to observe by satellites. This result also proves that the low frequency nonlinear ion acoustic waves may be very complicated and probably consist of various possible soliton or multi一solitons. Generally, it is difficult to study the nonlinear ion acoustic waves in the solar wind by purely analysing the observation data.
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/122/1243
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
冯学尚,北京8701信箱. 太阳风中非线性离子波研究的解析方法Ⅱ[J]. 吉首大学学报(自然科学版),1996,17(4):6-10.
APA 冯学尚,&北京8701信箱.(1996).太阳风中非线性离子波研究的解析方法Ⅱ.吉首大学学报(自然科学版),17(4),6-10.
MLA 冯学尚,et al."太阳风中非线性离子波研究的解析方法Ⅱ".吉首大学学报(自然科学版) 17.4(1996):6-10.
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