Astrophysics and Space Science

, Volume 330, Issue 1, pp 95–99 | Cite as

Electron-acoustic solitons in plasma with nonthermal electrons

Original Article

Abstract

Nonlinear electron-acoustic solitary waves (EASWs) are studied using Sagdeev’s pseudo-potential technique in a collisionless unmagnetized plasma consisting of a cold electron fluid, nonthermal hot electrons and stationary ions. It is shown that the presence of fast nonthermal electrons may modify the parametric region where electron-acoustic solitons may exist. Our investigation is of wide relevance to astronomers and space scientists working on interstellar space plasmas.

Keywords

Electron-acoustic waves Solitary waves Sagdeev potential Mach number Nonthermal electrons 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of PhysicsIslamic Azad UniversityBojnourd BranchIran
  2. 2.Theoretical Physics Laboratory, Plasma Physics Group, Faculty of Sciences-PhysicsUniversity of Bab-EzzouarAlgiersAlgeria

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