Coronal waves: propagation in the multi-fluid description.
We study wave propagation in the low-beta coronal plasma using a collisionless multi-fluid model. Neglecting the electron inertia, this model allows us to take into account ion-cyclotron wave effects that are absent in the magnetohydrodynamics model. To accomplish this, we perform a Fourier plane-wave perturbation analysis. Solving numerically the dispersion relations obtained from a two- and three-fluid model, dispersion curves for representative parameters of the solar corona are presented. The results reveal the presence of resonance frequencies that might play a role in coronal heating.
Mecheri
Redouane
R
Max Planck Institute for Solar System Research 37191 Katlenburg-Lindau, Germany. mecheri@mps.mpg.de
Marsch
Eckart
E