The kinetic response of a stochastic plasma to low frequency perturbations
Authors:
- 15 February 1994
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 21 (4) , 253-256
Abstract
Following suggestion that substorm breakup might be caused by an interchange or ballooning instability, several MHD and gyro‐kinetic stability analysis have been performed for plasma sheet magnetic field geometries. However, the stochastic ion dynamics in the highly stressed, thin high‐ß near earth plasma sheet violate the locality requirements of MHD and the invarience of the magnetic moment, μ, required by gyro‐kinetic theories. In this paper we develop a new linear Vlasov kinetic theory (for low frequency modes ω <ωb, ωb being the bounce frequency) which includes the dynamics of stochastic ions.Keywords
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