Nonlinear Flute-Drift Waves in Relativistic Electron-Positron Plasmas
Abstract
A set of two-fluid equations governing the nonlinear dynamics of flute-drift waves in an inhomogeneous collisionless magnetized relativistic electron- positron plasma in a gravitational field is derived. It is shown that a rigorous description of these waves in a plasma with inhomogeneous density and temperature has to take into account both the magnetic viscosity and the magnetic field compression (the finite β effect). It is shown that contrary to the case of a cold (nonrelativistic) plasma a flute instability can also exist in a plasma with a homogeneous density and inhomogeneous temperature. Our new equations have solitary solutions in the form of exponentially localized dipolar vortices.
- Publication:
-
Physica Scripta Volume T
- Pub Date:
- 2000
- DOI:
- 10.1238/Physica.Topical.084a00139
- Bibcode:
- 2000PhST...84..139O
- Keywords:
-
- 52.35.Kt;
- 52.35.Mw;
- 52.35.Sb