Title: Drift-Alfven eigenmodes in inhomogeneous plasma
Authors: Vranjes, Jovo ×
Poedts, Stefaan #
Issue Date: 2006
Publisher: Amer inst physics
Series Title: Physics of plasmas vol:13 issue:3
Article number: 032107
Abstract: A set of three nonlinear equations describing drift-Alfven waves in a nonuniform magnetized plasma is derived and discussed both in linear and nonlinear limits. In the case of a cylindric radially bounded plasma with a Gaussian density distribution in the radial direction the linearized equations are solved exactly yielding general solutions for modes with quantized frequencies and with radially dependent amplitudes. The full set of nonlinear equations is also solved yielding particular solutions in the form of rotating radially limited structures. The results should be applicable to the description of electromagnetic perturbations in solar magnetic structures and in astrophysical column-like objects including cosmic tornados. (c) 2006 American Institute of Physics.
ISSN: 1070-664X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Plasma-astrophysics Section
× corresponding author
# (joint) last author

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