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

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2000,（7）
• 页码范围: 517-518
• 页数: 2页
• 语种: 英文

摘要

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.