Generation mechanism for electron acoustic solitary waves

Nonlinear electron acoustic solitary waves (EASWs) are studied in a collisionless and unmagnetized plasma consisting of cold background electrons, cold beam electrons, and two different temperature ion species. Using pseudopotential analysis, the properties of arbitrary amplitude EASWs are investiga...

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Bibliographic Details
Published in:Physics of plasmas 2007-05, Vol.14 (5), p.052305-052305-5
Main Authors: Kakad, A. P., Singh, S. V., Reddy, R. V., Lakhina, G. S., Tagare, S. G., Verheest, F.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
BEAM-PLASMA SYSTEMS
BOUNDARY LAYERS
ELECTRON BEAMS
ELECTRONS
ION TEMPERATURE
NOISE
NONLINEAR PROBLEMS
PLASMA
PLASMA SHEET
PLASMA WAVES
POTENTIALS
SOLITONS
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Summary:Nonlinear electron acoustic solitary waves (EASWs) are studied in a collisionless and unmagnetized plasma consisting of cold background electrons, cold beam electrons, and two different temperature ion species. Using pseudopotential analysis, the properties of arbitrary amplitude EASWs are investigated. The present model supports compressive as well as rarefactive electron acoustic solitary structures. Furthermore, there is an interesting possibility of the coexistence of compressive and rarefactive solitary structures in a specific plasma parameter range. The application of our results in interpreting the salient features of the broadband electrostatic noise in the plasma sheet boundary layer is discussed.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.2732176