Higher order solutions to ion-acoustic solitons in a weakly relativistic two-fluid plasma

Gill, Tarsem Singh; Bala, Parveen; Kaur, Harvinder
December 2008
Physics of Plasmas;Dec2008, Vol. 15 Issue 12, p122309
Academic Journal
The nonlinear wave structure of small amplitude ion-acoustic solitary waves (IASs) is investigated in a two-fluid plasma consisting of weakly relativistic streaming ions and electrons. Using the reductive perturbation theory, the basic set of governing equations is reduced to the Korteweg–de Vries (KdV) equation for the lowest order perturbation. This analysis is further extended using the renormalization technique for the inclusion of higher order nonlinear and dispersive effects for better accuracy. The effect of higher order correction and various parameters on the soliton characteristics is investigated and also discussed.


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