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 |
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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 |
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