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Author Singh, S. V. ♦ Lakhina, G. S. ♦ Devanandhan, S. ♦ Bharuthram, R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ ELECTRON BEAMS ♦ ELECTRON PLASMA WAVES ♦ ELECTRONS ♦ KORTEWEG-DE VRIES EQUATION ♦ NONLINEAR PROBLEMS ♦ NUMERICAL ANALYSIS ♦ PERTURBATION THEORY ♦ PLASMA ♦ SOLITONS ♦ TEMPERATURE DEPENDENCE ♦ TWO-DIMENSIONAL CALCULATIONS ♦ WAVE PROPAGATION
Abstract A theoretical investigation is carried out to study the obliquely propagating electron acoustic solitary waves having nonthermal hot electrons, cold and beam electrons, and ions in a magnetized plasma. We have employed reductive perturbation theory to derive the Korteweg-de-Vries-Zakharov-Kuznetsov (KdV-ZK) equation describing the nonlinear evolution of these waves. The two-dimensional plane wave solution of KdV-ZK equation is analyzed to study the effects of nonthermal and beam electrons on the characteristics of the solitons. Theoretical results predict negative potential solitary structures. We emphasize that the inclusion of finite temperature effects reduces the soliton amplitudes and the width of the solitons increases by an increase in the obliquity of the wave propagation. The numerical analysis is presented for the parameters corresponding to the observations of “burst a” event by Viking satellite on the auroral field lines.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-08-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 23
Issue Number 8


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