Dipole Alfven Vortex with Finite Ion Larmor Radius in a Low-Beta Plasma

Chin. Phys. Lett.

2000, Vol. 17

Issue (7): 517-518 DOI:

Original Articles

Dipole Alfven Vortex with Finite Ion Larmor Radius in a Low-Beta Plasma

WANG XU-YU^1,2;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

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WANG XU-YU, HE Xian-Tu, LIU Zhen-Xing et al 2000 Chin. Phys. Lett. 17 517-518

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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.

Keywords: 52.35.Bj 52.25.Dg 94.10.Rk

Published: 01 July 2000

PACS:	52.35.Bj	(Magnetohydrodynamic waves (e.g., Alfven waves))
	52.25.Dg	(Plasma kinetic equations)
	94.10.Rk

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I7/0517

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