Global scale-invariant dissipation in collisionless plasma turbulence
Plasma Physics
2012-07-25 v1 Space Physics
Abstract
A higher-order multiscale analysis of the dissipation range of collisionless plasma turbulence is presented using in-situ high-frequency magnetic field measurements from the Cluster spacecraft in a stationary interval of fast ambient solar wind. The observations, spanning five decades in temporal scales, show a crossover from multifractal intermittent turbulence in the inertial range to non-Gaussian monoscaling in the dissipation range. This presents a strong observational constraint on theories of dissipation mechanisms in turbulent collisionless plasmas.
Cite
@article{arxiv.0906.2830,
title = {Global scale-invariant dissipation in collisionless plasma turbulence},
author = {K. H. Kiyani and S. C. Chapman and Yu. V. Khotyaintsev and M. W. Dunlop},
journal= {arXiv preprint arXiv:0906.2830},
year = {2012}
}
Comments
4 pages, 5 figures, submitted to physical review letters