Weakly Turbulent MHD Waves in Compressible Low-Beta Plasmas
Astrophysics
2009-11-13 v1
Abstract
In this Letter, weak turbulence theory is used to investigate interactions among Alfven waves and fast and slow magnetosonic waves in collisionless low-beta plasmas. The wave kinetic equations are derived from the equations of magnetohydrodynamics, and extra terms are then added to model collisionless damping. These equations are used to provide a quantitative description of a variety of nonlinear processes, including "parallel" and "perpendicular" energy cascade, energy transfer between wave types, "phase mixing," and the generation of back-scattered Alfven waves.
Keywords
Cite
@article{arxiv.0810.5360,
title = {Weakly Turbulent MHD Waves in Compressible Low-Beta Plasmas},
author = {Benjamin D. G. Chandran},
journal= {arXiv preprint arXiv:0810.5360},
year = {2009}
}
Comments
Accepted, Physical Review Letters