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Author Uddin, M. J. ♦ Alam, M. S. ♦ Mamun, A. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ DISTRIBUTION ♦ ELECTRONS ♦ EQUATIONS ♦ ION ACOUSTIC WAVES ♦ PERTURBATION THEORY ♦ PLASMA ♦ POSITRONS ♦ SHOCK WAVES ♦ VISCOSITY
Abstract A theoretical investigation is made on the positron-acoustic (PA) shock waves (SHWs) in an unmagnetized electron-positron-ion plasma containing immobile positive ions, cold mobile positrons, and hot positrons and electrons following the kappa (κ) distribution. The cold positron kinematic viscosity is taken into account, and the reductive perturbation method is used to derive the Burgers equation. It is found that the viscous force acting on cold mobile positron fluid is a source of dissipation and is responsible for the formation of the PA SHWs. It is also observed that the fundamental properties of the PA SHWs are significantly modified by the effects of different parameters associated with superthermal (κ distributed) hot positrons and electrons.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 22
Issue Number 6


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