A kinetic theory for the drift-kink instability

Details A kinetic theory for the drift-kink instability A kinetic theory for the drift-kink instability

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jgr...10227099l&link_type=abstract

Journal of Geophysical Research, Volume 102, Issue A12, p. 27099-27108

Physics

Plasma Physics

58

Magnetospheric Physics: Numerical Modeling, Magnetospheric Physics: Plasma Waves And Instabilities, Space Plasma Physics: Kinetic And Mhd Theory, Space Plasma Physics: Numerical Simulation Studies

Scientific paper

We have developed a linear two-dimensional kinetic theory, which is motivated by recent results for the drift-kink instability. The theory predicts plasma instability for large values of ion-electron temperature ratios, Ti/Te, moderate drift speeds, and large ion-electron mass ratios, mi/me, corresponding to conditions in the near-Earth region of the magnetotail neutral sheet. The growth rate predicted by the theory is in good agreement with nonlinear plasma simulations (but the mode structure is not), including linear growth rates obtained with an implicit, electromagnetic simulation with realistic ion-electron mass ratio.

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