Viscous damping of surface magnetohydrodynamic waves on magnetic interface in cold plasmas

Details Viscous damping of surface magnetohydrodynamic waves on magnetic interface in cold plasmas Viscous damping of surface magnetohydrodynamic waves on magnetic interface in cold plasmas

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..131...11r&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 131, Jan. 1991, p. 11-24.

Physics

19

Cold Plasmas, Magnetohydrodynamic Waves, Solar Corona, Viscous Damping, Wave Propagation, Magnetic Induction, Solar Atmosphere, Surface Waves, Viscosity, Wave Dispersion

Scientific paper

Surface magnetohydrodynamic wave propagation on a magnetic interface in a cold plasma is studied. The anisotropic ion viscosity is taken into account. Only long waves damping weakly in a wave period are considered. The dispersion equation is obtained. This equation is shown always to have exactly one root if there is no viscosity. The dependences of phase velocity, penetration depth and damping decrement of waves on the parameters of undisturbed plasma and wave propagation direction are investigated. The resulting application for describing of surface wave damping in the solar corona is discussed.

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