Dipole Alfven Vortex with Finite Ion Larmor Radius in a Low-Beta Plasma
WANG XU-YU1,2, HE Xian-Tu1, LIU Zhen-Xing2, CAO Jin-Bin2
1Institute of Applied Physics & Computational Mathematics, Beijing 100088
2Laboratory of Space Weather, Center for Space Science & Applied Research, Chinese Academy of Sciences, Beijing 100080
Dipole Alfven Vortex with Finite Ion Larmor Radius in a Low-Beta Plasma
WANG XU-YU1,2;HE Xian-Tu1;LIU Zhen-Xing2;CAO Jin-Bin2
1Institute of Applied Physics & Computational Mathematics, Beijing 100088
2Laboratory of Space Weather, Center for Space Science & Applied Research, Chinese Academy of Sciences, Beijing 100080
Abstract： A set of nonlinear fluid equations which include the effects of ion gyroradius is derived to describe Alfven vortex. The correction of finite ion gyroradius to the Alfven vortex in the inertial region is much more significant than that in the kinetic region. The amplitude of the vortex is enhanced in both regions. The scale of the vortex in the kinetic region becomes larger whereas it becomes smaller in the inertial region.
WANG XU-YU;HE Xian-Tu;LIU Zhen-Xing;CAO Jin-Bin. Dipole Alfven Vortex with Finite Ion Larmor Radius in a Low-Beta Plasma[J]. 中国物理快报, 2000, 17(7): 517-518.
WANG XU-YU, HE Xian-Tu, LIU Zhen-Xing, CAO Jin-Bin. Dipole Alfven Vortex with Finite Ion Larmor Radius in a Low-Beta Plasma. Chin. Phys. Lett., 2000, 17(7): 517-518.
2000, Vol. 17 
