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Nonlinear magnetoacoustic waves in pair-ion plasma with dust impurity

Published online by Cambridge University Press:  29 May 2013

SHI-SEN RUAN ,
JIANG-HONG MAN ,
SHAN WU  and
ZE CHENG
SHI-SEN RUAN
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China (ss.ruan@yahoo.com.cn) School of Electronics and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China
JIANG-HONG MAN
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China (ss.ruan@yahoo.com.cn)
SHAN WU
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China (ss.ruan@yahoo.com.cn)
ZE CHENG
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China (ss.ruan@yahoo.com.cn)
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Abstract

Nonlinear properties of magnetoacoustic waves are investigated in magnetized pair-ion plasmas with dust impurity. Three-fluid collisionless magneto-hydrodynamic model is considered and reductive perturbation method is employed to derive Korteweg-de Vries equation for magnetoacoustic solitary waves (MASWs). The effects of the charge number of dust particles, magnetic field intensity, and plasma number density are studied on MASWs. It is found that the variation of parameters causes significant changes in solitary structures. The present investigation may be useful to understand formation and propagation of MASW structures in dust pair-ion plasmas.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 5 , October 2013 , pp. 825 - 831
Copyright
Copyright © Cambridge University Press 2013 

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