Physics
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988soph..115..235v&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 115, no. 2, 1988, p. 235-249.
Physics
8
Ballooning Modes, Solar Corona, Solar Magnetic Field, Viscosity, Magnetohydrodynamic Stability, Photosphere, Skylab Program, Solar Maximum Mission, Stress Tensors
Scientific paper
The study of resistive ballooning instabilities in line-tied coronal magnetic fields is extended by including viscosity in the stability analysis. The equations that govern the resistive ballooning instabilities are derived and the effects of parallel and perpendicular viscosity are included using Braginskii's stress tensor. Numerical solutions to these equations are obtained under the rigid wall boundary conditions for arcades with cylindrically-symmetric magnetic fields. It is found that viscosity has a stabilizing effect on the resistive ballooning instabilities with perpendicular viscosity being more important by far than parallel viscosity. The strong stabilizing effect of perpendicular viscosity can lead to complete stabilization for realistic values of the equilibrium quantities.
Goossens Marcel
Hood Alan William
van der Linden R.
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