Evolution of magnetic field curvature in the Kulsrud-Anderson dynamo theory
arXiv:astro-ph/0103191 · doi:10.1086/322351
Abstract
We find that in the kinematic limit the ensemble averaged square of the curvature of magnetic field lines is exponentially amplified in time by the turbulent motions in a highly conductive plasma. At the same time, the ensemble averaged curvature vector exponentially decays to zero. Thus, independently of the initial conditions, the fluctuation field becomes very curved, and the curvature vector becomes highly isotropic. Keywords: ISM: magnetic fields, MHD, turbulence, methods: analytical
4 pages (ApJ twocolumn style), a part of the conclusion has been changed