Volume 56, Issue 10 pp. 927-937
Original Paper

Parametric Study of Nonplanar Dust Acoustic Solitons in Two-Dimensional Superthermal Dusty Plasmas

S. Khan

S. Khan

Department of Physics, Gomal University, D.I. Khan 29050 Pakistan

National Centre for Physics, QAU Campus, Shahdrah Valley Road, Islamabad 44000, Pakistan

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Ata-ur-Rahman

Corresponding Author

Ata-ur-Rahman

Department of Physics, Islamia College Peshawar (A Public Sector University), Peshawar 25120 Pakistan

Department of Physics, Islamia College Peshawar (A Public Sector University), Peshawar 25120 PakistanSearch for more papers by this author
S. Ali

S. Ali

National Centre for Physics, QAU Campus, Shahdrah Valley Road, Islamabad 44000, Pakistan

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M. Khalid

M. Khalid

Department of Physics, Gomal University, D.I. Khan 29050 Pakistan

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N. A. D. Khattak

N. A. D. Khattak

Department of Physics, Gomal University, D.I. Khan 29050 Pakistan

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A. Zeb

A. Zeb

Department of Physics, Islamia College Peshawar (A Public Sector University), Peshawar 25120 Pakistan

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First published: 11 July 2016
Citations: 10

Abstract

The nonlinear properties of two dimensional low-frequency electrostatic excitations of charged dust particles (or defects) are studied in a collisionless, unmagnetized dusty plasma. A fully ionized three-component model plasma consisting of kappa distributed electrons, Maxwellian ions, and negatively charged massive dust grains is considered. In this regard, the well known reductive perturbation technique is used to the hydrodynamical equations and the Poisson equation, obtaining the cylindrical Kadomtsev–Petviashvili (CKP) equation. A parametric investigation indicates that the structural characteristics of these nonlinear excitations (width, amplitude) are significantly affected by the plasma nonthermality as well as by the relevant plasma parameters, such as dust concentration and dust temperature. (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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