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Effects of vortex-like (trapped) electron distribution on non-linear dust-acoustic waves with positive dust charge fluctuation

Published online by Cambridge University Press:  15 January 2010

M. R. AMIN ,
SANJIT K. PAUL ,
GURUDAS MANDAL  and
A. A. MAMUN
M. R. AMIN
Affiliation:
Department of Electronics and Communications Engineering, East West University, Dhaka 1212, Bangladesh (ramin@ewubd.edu)
SANJIT K. PAUL
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
GURUDAS MANDAL
Affiliation:
Department of Electronics and Communications Engineering, East West University, Dhaka 1212, Bangladesh (ramin@ewubd.edu)
A. A. MAMUN
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
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Abstract

The nonlinear propagation of dust-acoustic (DA) waves in a dusty plasma consisting of Boltzmann-distributed ions, vortex-like distributed electrons and mobile charge fluctuating positive dust has been investigated by employing the reductive perturbation method. The effects of dust grain charge fluctuation and the vortex-like electron distribution are found to modify the properties of the DA solitary waves significantly. The implications of these results for some space and astrophysical dusty plasma systems are briefly mentioned.

Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Special Issue 3-4: In Honor of Professor Padma Kant Shukla on the Occasion of His 60th Birthday , August 2010 , pp. 477 - 485
Copyright
Copyright © Cambridge University Press 2010

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