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Study of small amplitude ion-acoustic solitary wave structures and amplitude modulation in e–p–i plasma with streaming ions

Published online by Cambridge University Press:  05 April 2018

Jyotirmoy Goswami ,
Swarniv Chandra  and
B. Ghosh
Jyotirmoy Goswami
Affiliation:
Department of Physics, Jadavpur University, Jadavpur, Kolkata-32, India
Swarniv Chandra*
Affiliation:
Department of Physics, Jadavpur University, Jadavpur, Kolkata-32, India Department of Physics, JIS University, Agarpara, Koltata-109, India
B. Ghosh
Affiliation:
Department of Physics, Jadavpur University, Jadavpur, Kolkata-32, India
*
Author for correspondence: Swarniv Chandra, Department of Physics, Jadavpur University, Jadavpur, Kolkata-32, India. E-mail: swarniv147@gmail.com
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Abstract

By using reductive perturbation technique we have studied the linear and non-linear properties of ion-acoustic solitary structures in a three-component plasma containing non-thermal electrons and Boltzmann positrons and a comparatively cold ion which has got a streaming motion. The Korteweg–de Vries equation has been obtained and the dependence of small amplitude solitary structures on various plasma parameters such as streaming velocity (v0), non-thermal parameter (β), reciprocal of electron temperature (χ), positron density (p), Mach number (M), and ion density (δ) have been studied. The possibility of formation of enveloping soliton and its characteristic features are further investigated by deriving the non-linear Schrödinger equation.

Keywords

Boltzmann positronKdVnon-linear Schrödinger equationnon-thermal electronsstreaming ion
Type
Research Article
Information
Laser and Particle Beams , Volume 36 , Issue 1 , March 2018 , pp. 136 - 143
Copyright
Copyright © Cambridge University Press 2018 

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