Global scale-invariant dissipation in collisionless plasma turbulence

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Authors
Kiyani, K. H.
Chapman, S. C.
Khotyaintsev, Yu. V.
Dunlop, M. W.
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Abstract
Description
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.
Comment: 4 pages, 5 figures, submitted to physical review letters
Keywords
Physics - Plasma Physics, Physics - Space Physics
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