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Title: Study of nonlinear electron-acoustic solitary and shock waves in a dissipative, nonplanar space plasma with superthermal hot electrons

With the consideration of the superthermal electron distribution, we present a theoretical investigation about the nonlinear propagation of electron-acoustic solitary and shock waves in a dissipative, nonplanar non-Maxwellian plasma comprised of cold electrons, superthermal hot electrons, and stationary ions. The reductive perturbation technique is used to obtain a modified Korteweg-de Vries Burgers equation for nonlinear waves in this plasma. We discuss the effects of various plasma parameters on the time evolution of nonplanar solitary waves, the profile of shock waves, and the nonlinear structure induced by the collision between planar solitary waves. It is found that these parameters have significant effects on the properties of nonlinear waves and collision-induced nonlinear structure.
Authors:
; ; ; ; ;  [1] ;  [2] ;  [3]
  1. College of Physics and Electromechanical Engineering, Hexi University, Zhangye 734000 (China)
  2. College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China)
  3. College of Civil Engineering, Hexi University, Zhangye 734000 (China)
Publication Date:
OSTI Identifier:
22252180
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COLLISIONS; ELECTRONS; NONLINEAR PROBLEMS; PLASMA; SHOCK WAVES; SPACE