Nonlinear theory of resonant slow waves in anisotropic and dispersive plasmas |
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Istvan Ballai Submitted: 2008-08-23 08:32
The solar corona is a typical example of a plasma with strongly
anisotropic transport processes. The main dissipative mechanisms in
the solar corona acting on slow magnetoacoustic waves are the
anisotropic thermal conductivity and viscosity. Ballai et
al. [Phys. Plasmas, 5, 252 (1998)] developed the nonlinear
theory of driven slow resonant waves in such a regime. In the
present paper the nonlinear behaviour of driven magnetohydrodynamic
waves in the slow dissipative layer in plasmas with strongly
anisotropic viscosity and thermal conductivity is expanded by
considering dispersive effects due to Hall currents. The nonlinear
governing equation describing the dynamics of nonlinear resonant
slow waves is supplemented by a term which describes
nonlinear dispersion and is of the same order of magnitude as
nonlinearity and dissipation. The connection formulae are found to
be similar to their non-dispersive counterparts.
Authors: Christopher Clack, Istvan Ballai
Projects: None
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Publication Status: Physics of Plasmas, in press
Last Modified: 2008-08-23 09:20
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