Dissipation of Magnetohydrodynamic Waves in an Inhomogeneous Streaming Plasma
Abstract
The investigation of instabilities adopting the point of view of inhomogeneous mass flow, physically corresponds to consideration of stability of the perturbations whose wavelengths in the direction of plasma inhomogeneities are much larger than the characteristic plasma scale length. The dissipation of hydromagneticwaves and instabilities takes place due to the inhomogeneous plasma flow. Both the velocity and plasma density vary in the direction perpendicular to the magnetic field. It is found that the Alfvén wave branch and magnetosonic branch may be driven unstable by the velocity shear. Instability, oscillatory modes, marginal instability and overstability are worked out.
 Publication:

Astrophysics and Space Science
 Pub Date:
 February 1983
 DOI:
 10.1007/BF00651543
 Bibcode:
 1983Ap&SS..90....3S
 Keywords:

 Cosmic Plasma;
 Magnetohydrodynamic Stability;
 Magnetohydrodynamic Waves;
 Nonuniform Plasmas;
 Plasma Dynamics;
 Wave Attenuation;
 Astrophysics;
 Electron Plasma;
 KelvinHelmholtz Instability;
 Larmor Radius;
 Particle Motion;
 Plasma Oscillations;
 Astrophysics