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Kadomtsev-Petviashvili solitons propagation in a plasma system with superthermal and weakly relativistic effects

Source: Phys. Plasmas 18, 122302 (2012); http://dx.doi.org/10.1063/1.3662101

Published 13 December 2011

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1553-9601 (online)
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AIP is a member of CrossRef AIP
Hafeez-Ur-Rehman,1,2 Asif Shah,1 S. Mahmood,1,2 and Q. Haque1
1Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
2Department of Physics and Applied Mathematics, PIEAS, Nilore, 44000 Islamabad, Pakistan
Two dimensional (2D) solitons are studied in a plasma system comprising of relativistically streaming ions, kappa distributed electrons, and positrons. Kadomtsev-Petviashvili (KP) equation is derived through the reductive perturbation technique. Analytical solution of the KP equation has been studied numerically and graphically. It is noticed that kappa parameters of electrons and positrons as well as the ions relativistic streaming factor have an emphatic influence on the structural as well as propagation characteristics of two dimensional solitons in the considered plasma system. Our results may be helpful in the understanding of soliton propagation in astrophysical and laboratory plasmas, specifically the interaction of pulsar relativistic wind with supernova ejecta and the transfer of energy to plasma by intense electric field of laser beams producing highly energetic superthermal and relativistic particles [L. Arons, Astrophys. Space Sci. Lib. 357, 373 (2009); P. Blasi and E. Amato, Astrophys. Space Sci. Proc. 2011, 623; and A. Shah and R. Saeed, Plasma Phys. Controlled Fusion 53, 095006 (2011)]. ©2011 American Institute of Physics
History: Received 16 June 2011; accepted 24 October 2011; published 13 December 2011
Digital Object Identifier: http://dx.doi.org/10.1063/1.3662101

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