Electron-acoustic solitons in plasma with nonthermal electrons
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.
KeywordsElectron-acoustic waves Solitary waves Sagdeev potential Mach number Nonthermal electrons
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- Mace, R.L., Hellberg, M.A.: J. Plasma Phys. 34, 239 (1983) Google Scholar