Formation of Nonlinear Solitary Vortical Structures by Drift and Ion-Acoustic Waves in Electron-Positron-Ion Plasmas

Autor: T. D. Kaladze, L. Z. Kahlon, I. Javaid
Rok vydání: 2020
Předmět:
Zdroj: Brazilian Journal of Physics. 50:291-297
ISSN: 1678-4448
0103-9733
DOI: 10.1007/s13538-020-00745-y
Popis: To describe the nonlinear propagation of electrostatic drift and ion-acoustic waves (DIAWs), the generalized Hasegawa-Mima equation containing both vector (Jacobian) and scalar (Korteweg-de Vries type) nonlinearities is obtained for electron-positron-ion (EPI) plasmas. In addition, density and temperature non-homogeneities of electrons and positrons are taken into account. Appropriate set of 3D equations consisting of generalized Hasegawa-Mima equation for the electrostatic potential and equation of parallel to magnetic field motion of ions are obtained to describe the formation of coherent dipole and large-scale monopole vortices.
Databáze: OpenAIRE