Pk. Shukla et al., ALFVEN VORTICES IN NONUNIFORM DUSTY MAGNETOPLASMAS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 47(1), 1993, pp. 750-752
The Alfven waves are shown to be linearly coupled with finite-frequenc
y convective cell modes in a nonuniform cold dusty magnetoplasma. The
dynamics of weakly interacting finite-amplitude electromagnetic oscill
ations is governed by a pair of nonlinear equations. The latter admit
dipolar vortices as possible stationary solutions. The present results
can have relevance to the nonlinear electromagnetic wave propaption i
n a space environment such as cometary tails or interstellar clouds.