TITLE

Existence domains of large amplitude dust-acoustic solitons in non-thermal plasmas with positive and negative dust

AUTHOR(S)
Maharaj, S. K.; Bharuthram, R.; Singh, S. V.; Pillay, S. R.; Lakhina, G. S.
PUB. DATE
November 2011
SOURCE
AIP Conference Proceedings;11/28/2011, Vol. 1397 Issue 1, p365
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using the traditional Sagdeev pseudopotential approach, the existence of large amplitude solitons is investigated for a plasma composed of cold negative dust, adiabatic positive dust, non-thermal ions and Boltzmann electrons. The lower and upper soliton Mach number limitations are determined as a function of various parameters and physical reasons are provided as to why these Mach number limits occur. Some regions in parameter space have been identified where only negative or positive solitons occur, whereas, other regions support the coexistence of both positive and negative potential solitons.
ACCESSION #
67538381

 

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