Electron-acoustic solitons in current-carrying magnetized plasmas
Abstract
Nonlinear, finite amplitude electron-acoustic waves in a current carrying magnetized collisionless plasma, with ion temperature much greater than the electron temperature, are found to be governed by a modified K-dV equation. Using the method of inverse scattering, it is shown that this equation gives damped or growing solitons with tail formation on the reverse side. For a given soliton-width, the rates of these processes increase as the angle between the propagation vector and the magnetic field decreases. But a change in the electron to ion temperature ratio affects only the velocity of the soliton.
- Publication:
-
Plasma Physics
- Pub Date:
- September 1980
- DOI:
- 10.1088/0032-1028/22/9/002
- Bibcode:
- 1980PlPh...22..873M
- Keywords:
-
- Acoustic Propagation;
- Collisionless Plasmas;
- Electron Diffusion;
- Plasma Oscillations;
- Plasma Waves;
- Solitary Waves;
- Korteweg-Devries Equation;
- Landau Damping;
- Larmor Radius;
- Perturbation Theory;
- Plasma Currents;
- Wave Propagation;
- Plasma Physics