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- Title
Sheared flow-driven vortices and solitary waves in a non-uniform plasma with negative ions and non-thermal distributed electrons.
- Authors
MUSHTAQ, A.; SHAH, ATTAULLAH
- Abstract
The coupled drift-ion acoustic (DIA) waves in an inhomogeneous magnetoplasma having negative and positive ions can be driven by the parallel sheared flows in the presence of Cairns distributed non-thermal electrons. The coupled DIA waves can become unstable due to shear flows. The conditions of modes instability are discussed with effects of non-thermal electrons. These are the excited modes and start interactions among themselves. The interaction is governed by the Hasegawa–Mima equations with analytical solutions in the form of a vortex chain and dipolar vortex. On the other hand, for scalar nonlinearity the Kortweg deVries-type equation is obtained with solitary wave solution. Possible application of the work to the space and laboratory plasmas are highlighted.
- Subjects
SHEAR flow; SOLITONS; NONUNIFORM plasmas; ANIONS; NON-thermal plasmas; THERMAL electrons; PLASMA gases
- Publication
Journal of Plasma Physics, 2013, Vol 79, Issue 5, p479
- ISSN
0022-3778
- Publication type
Article
- DOI
10.1017/S0022377812001122