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Dust ion-acoustic solitary waves in a magnetized dusty electronegative plasma

Published online by Cambridge University Press:  19 May 2010

M. G. M. ANOWAR ,
K. S. ASHRAFI  and
A. A. MAMUN
M. G. M. ANOWAR
Affiliation:
Department of Physics, National University, Gazipur-1704, Bangladesh ([email protected])
K. S. ASHRAFI
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
A. A. MAMUN
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
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Abstract

The basic features of obliquely propagating dust ion-acoustic (DIA) solitary waves in an adiabatic magnetized dusty electronegative plasma (containing Boltzmann electrons, Boltzmann negative ions, adiabatic positive ions, and negatively charged stationary dust) have been investigated. The reductive perturbation method has been employed to derive the Korteweg–de Vries (KdV) equation which admits a solitary wave solution. The combined effects of ion adiabaticity and external magnetic field (obliqueness), which are found to significantly modify the basic features of the small but finite-amplitude DIA solitary waves, are explicitly examined. The implications of our results in space and laboratory dusty plasmas are briefly discussed.

Type
Papers
Information
Journal of Plasma Physics , Volume 77 , Issue 1 , February 2011 , pp. 133 - 143
Copyright
Copyright © Cambridge University Press 2010

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