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Effects of polarization force and fast electrons on DA shock waves in a strongly coupled dusty plasma

Published online by Cambridge University Press:  21 August 2012

S. PERVIN ,
S. S. DUHA ,
M. ASADUZZAMAN  and
A. A. MAMUN
S. PERVIN
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh (shadab22@yahoo.com)
S. S. DUHA
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh (shadab22@yahoo.com)
M. ASADUZZAMAN
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh (shadab22@yahoo.com)
A. A. MAMUN
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh (shadab22@yahoo.com)
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Abstract

A strongly coupled dusty plasma system consisting of non-thermal electrons, Maxwellian ions, and negatively charged dust in presence of polarization force has been considered. The nonlinear propagation of dust-acoustic shock waves in such a dusty plasma system has been theoretically investigated by employing the reductive perturbation method. The effects of the polarization force and non-thermal electrons, on the properties of these dust-acoustic shock waves are briefly discussed. It is shown that the strong correlation among the charged dust grains is a source of dissipation, and is responsible for the formation of the dust-acoustic shock waves. It has been found that the effects of polarization force and non-thermal electrons significantly modify the basic features of such shock waves. It has been proposed to design a new laboratory experiment, which will be able to identify the basic features of the dust-acoustic shock waves predicted in this present investigation.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 1 , February 2013 , pp. 1 - 6
Copyright
Copyright © Cambridge University Press 2012

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