Rapid Coronal Heating via Visco-resistive Phase Mixing

Details Rapid Coronal Heating via Visco-resistive Phase Mixing Rapid Coronal Heating via Visco-resistive Phase Mixing

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...3e..82w&link_type=abstract

Solar Active Regions and 3D Magnetic Structure, 26th meeting of the IAU, Joint Discussion 3, 16-17 August, 2006, Prague, Czech R

Physics

Scientific paper

We explore the role of viscous and resistive damping of shear Alfven waves in magnetized plasmas. Perpendicularly polarized shear waves that ride on spatially varying horizontal background fields are remarkably efficient at dissipating wave energy via phase mixing. A combination of analytical and numerical treatments confirm that solutions in simple 1D Cartesian and cylindrical geometries allow energy release rates that are only weakly dependent on the visco-resistive damping coefficients. Numerical simulations also confirm that more general 2D solutions exhibit similar behaviour. This process could provide a fast and efficient method for heating the solar corona.

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