Advances in Astronomy and Space Physics, Volume 3, Issue 1, PP. 58-62 (2013)
doi: 10.17721/2227-1481.3.58-62

Damping of magnetospheric toroidal Alfvén eigenmodes
due to phase mixing

S. O. Cheremnykh, A. S. Parnowski

Space Research Institute, Akad. Glushkova ave., 40, build. 4/1, 03680 MSP Kyiv-187, Ukraine

Abstract
We demonstrate that toroidal shear Alfvén eigenmodes in dipolar magnetostatic plasma equilibrium are subject to damping due to phase mixing. This result is of particular interest for the investigation of Pc5-6 geomagnetic pulsations.

Keywords:
methods: analytical, MHD waves and instabilities, kinetic and MHD theory


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