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Dust-acoustic supersolitons in a three-species dusty plasma with kappa distributions

Published online by Cambridge University Press:  08 January 2014

M. A. HELLBERG
Affiliation:
School of Chemistry & Physics, University of KwaZulu-Natal, Durban, South Africa (hellberg@ukzn.ac.za)
T. K. BALUKU
Affiliation:
Department of Mathematics & Physical Sciences, Pwani University, P. O. Box 195-80108, Kilifi, Kenya
F. VERHEEST
Affiliation:
School of Chemistry & Physics, University of KwaZulu-Natal, Durban, South Africa (hellberg@ukzn.ac.za) Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, B–9000 Gent, Belgium
I. KOURAKIS
Affiliation:
Centre for Plasma Physics, Department of Physics & Astronomy, Queen's University Belfast, BT7 1NN Northern Ireland, UK

Abstract

Supersolitons are a form of soliton characterised, inter alia, by additional local extrema superimposed on the usual bipolar electric field signature. Previous studies of supersolitons supported by three-component plasmas have dealt with ion-acoustic structures. An analogous problem is now considered, namely, dust-acoustic supersolitons in a plasma composed of fluid negative dust grains and two kappa-distributed positive ion species. Calculations illustrating some supersoliton characteristics are presented.

Type
Papers
Copyright
Copyright © Cambridge University Press 2013 

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Footnotes

This paper is dedicated to the memory of Padma Shukla, a great scientist, whose enthusiasm inspired many, and whose infectious warmth and generous spirit will be missed by his friends and colleagues.

References

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