The influence of the non-linear term, in the ionic polarization drift on solitary kinetic Alfven waves

被引：0
|
作者：
Duan, SP [1 ]
Li, ZY [1 ]
机构：
[1] Univ Sci & Technol China, Coll Earth & Space Sci, Hefei 230026, Peoples R China
来源：
CHINESE ASTRONOMY AND ASTROPHYSICS | 2003年 / 27卷 / 03期
关键词：
magnetohydrodynamics; waves;
D O I：
10.1016/S0275-1062(03)00065-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is shown that the nonlinear term in the ionic polarization drift has a non-negligible effect on the solitary kinetic Alfven waves (SKAW) of the rarefied type in low-beta plasmas (beta is the heat to magnetic energy ratio) i.e. the nonlinear term allows the existence of SKAW with both sub- and super-Alfvenic speeds in the low-beta regime. This result appears to be in good agreement with satellite observations of the magnetosphere.
引用
收藏
页码：262 / 268
页数：7
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