Generation of convective cells by kinetic Alfven waves

被引：12
|
作者：
Zhao, J. S. [1 ,2 ]
Wu, D. J. [1 ]
Lu, J. Y. [3 ]
Yang, L. [1 ]
Yu, M. Y. [4 ,5 ]
机构：
[1] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
[3] China Meteorol Adm, Natl Ctr Space Weather, Beijing 100081, Peoples R China
[4] Zhejiang Univ, Dept Phys, Inst Fus Theory & Simulat, Hangzhou 310027, Peoples R China
[5] Ruhr Univ Bochum, Inst Theoret Phys 1, D-44780 Bochum, Germany
来源：
NEW JOURNAL OF PHYSICS | 2011年 / 13卷
关键词：
GEODESIC ACOUSTIC MODES; ZONAL FLOW GENERATION; DRIFT WAVES; PLASMA; TURBULENCE; SCALE; FIELD; MAGNETOSPHERE; SIMULATIONS; EXCITATION;
D O I：
10.1088/1367-2630/13/6/063043
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Nonlinear interaction between kinetic Alfven waves (KAWs) and the electrostatic and magnetostatic convective cells in plasmas is considered here. It is shown that the KAWs in the kinetic regime can excite only magnetostatic convective cells, but those in the inertial regime can excite only electrostatic convective cells. Moreover, there is a preferred spatial scale for the instability-generated electrostatic cells, but not for the magnetostatic cells. The significance of the present results for space plasmas is discussed.
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收藏
页数：11
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