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| Titre: | Ion-acoustic solitons in electron positron nonthermal plasma |
| Auteur(s): | Bahamida, Saida
Annou, K.
Annou, R. |
| Mots-clés: | Active galactic nuclei
Astrophysical plasma
Early universe
Electron-positron plasma
Ion acoustic solitons
Large amplitude
Nonthermal electrons
Nonthermal plasma
Pseudopotential approach
Pulsar magnetosphere
Three-component |
| Date de publication: | 2007 |
| Collection/Numéro: | 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts/ Vol.31, N°3 (2007);pp. 1641-1644 |
| Résumé: | Electron-positron plasmas are believed to exist in the early universe, in active galactic nuclei, and in pulsar magnetospheres. Most of the astrophysical plasmas usually contain ions as well in addition to electrons and positrons. In this work, the ion-acoustic solitons are investigated in three-component plasmas, whose constituents are inertial ions, nonthermal electrons, and Boltzmannian positrons. The properties of stationary structures are studied by pseudopotential approach, which is valid for large amplitude. It is found that the conditions which support the existence of solitons are altered |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/2658 |
| ISBN: | 978-162276334-4 |
| Collection(s) : | Communications Internationales
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