Effect of trapped electrons on soliton propagation in a plasma having a density gradient

Farah Aziz, Ulrich Stroth

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19 Scopus citations

Abstract

A Korteweg-deVries equation with an additional term due to the density gradient is obtained using reductive perturbation technique in an unmagnetized plasma having a density gradient, finite temperature ions, and two-temperature nonisothermal (trapped) electrons. This equation is solved to get the solitary wave solution using sine-cosine method. The phase velocity, soliton amplitude, and width are examined under the effect of electron and ion temperatures and their concentrations. The effect of ion (electron) temperature is found to be more significant in the presence of larger (smaller) number of trapped electrons in the plasma.

Original languageEnglish
Article number032108
JournalPhysics of Plasmas
Volume16
Issue number3
DOIs
StatePublished - 2009
Externally publishedYes

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