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Theory for two-dimensional electron and ion Bernstein–Greene–Kruskal modes in a magnetized plasma

Published online by Cambridge University Press:  01 October 2007

B. ELIASSON  and
P. K. SHUKLA
B. ELIASSON
Affiliation:
Department of Physics, Umeå University, SE-90187 Umeå, Sweden e-mail: bengt@tp4.rub.de
P. K. SHUKLA
Affiliation:
Institut für Theoretische Physik IV and Centre for Plasma Science and Astrophysics, Ruhr-Universität Bochum, D-44780 Bochum, Germany
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Abstract

A theory for two-dimensional electron and ion Bernstein–Greene– Kruskal (BGK) modes in a magnetized space plasma is presented. The BGK modes are constructed using the energy and the canonical angular momentum of the particles, which are conserved in a cylindrically symmetric potential. The typical length scale of the BGK modes is of the same order or larger than the thermal gyroradius of the particles. The results are relevant for understanding the properties of observed localized structures in the Earth's magnetosphere and auroral zone, as well as in laboratory magnetoplasmas.

Type
Papers
Information
Journal of Plasma Physics , Volume 73 , Issue 5 , October 2007 , pp. 715 - 721
Copyright
Copyright © Cambridge University Press 2006

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