Localized electrostatic excitations in a thomas-fermi plasma containing degenerate electrons

U.M. Abdelsalam, W.M. Moslem, P.K. Shukla

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Abstract

By using the Thomas-Fermi electron density distribution for quantum degenerate electrons, the hydrodynamic equations for ions, and the Poisson equation, planar and nonplanar ion-acoustic solitary waves in an unmagnetized collisionless plasma are investigated. The reductive perturbation method is used to derive cylindrical and spherical Korteweg-de Vries equations. Numerical solutions of the latter are presented. The present results can be useful in understanding the features of small but finite amplitude localized ion-acoustic solitary pulses in a degenerate plasma
Original languageEnglish
Pages (from-to)052303
JournalPhysics of Plasmas
Volume15
Issue number5
DOIs
Publication statusPublished - May 2008

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Keywords

  • ion-acoustic-waves
  • warm multicomponent plasma
  • solitary waves
  • dusty plasmas
  • double-layers
  • solitons
  • amplitude
  • temperature
  • propagation
  • beam

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