Electrostatic wave structures in a magnetized superthermal plasma with two-temperature electrons
- Department of Physics, Faculty of Science, Arak University, Arak 38156- 8 8349 (Iran, Islamic Republic of)
- Department of Physics, Faculty of Basic Science, Babol University of Technology, Babol 47148-71167 (Iran, Islamic Republic of)
The linear and nonlinear excitation of arbitrary amplitude ion-acoustic (IA) solitary waves in a magnetized plasma comprising two-temperature electrons and cold ions are studied. The oblique propagation properties of two possible modes (in the linear regime) are investigated. It is found that the electron superthermality reduces the phase velocities of both modes, whereas obliqueness leads to an increase in the separation between two modes. In the nonlinear regime, an energy-like equation describes the evolution of IA solitary waves in the present model. The combined effects of the electron superthermality, magnitude of magnetic field, obliqueness and electron population are incorporated in the study of the existence domain of solitary waves and the soliton characteristics. It is shown that the small values of the hot electron population shift the permitted interval of Mach number to the lower values. Both compressive and rarefactive solitary structures are found to exist in the presence of two temperature electrons. The present investigation contributes to the physics of electrostatic wave structures in Saturn's magnetosphere in which two temperature electrons with kappa distribution exist.
- OSTI ID:
- 22227884
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 20; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electron acoustic waves in a magnetized plasma with kappa distributed ions
Propagation of ion-acoustic solitons in an electron beam-superthermal plasma system with finite ion-temperature: Linear and fully nonlinear investigation
Oblique propagation of electrostatic waves in a magnetized electron-positron-ion plasma with superthermal electrons
Journal Article
·
Wed Aug 15 00:00:00 EDT 2012
· Physics of Plasmas
·
OSTI ID:22086024
Propagation of ion-acoustic solitons in an electron beam-superthermal plasma system with finite ion-temperature: Linear and fully nonlinear investigation
Journal Article
·
Fri Mar 15 00:00:00 EDT 2013
· Physics of Plasmas
·
OSTI ID:22107676
Oblique propagation of electrostatic waves in a magnetized electron-positron-ion plasma with superthermal electrons
Journal Article
·
Mon Nov 14 23:00:00 EST 2011
· Physics of Plasmas
·
OSTI ID:22047046