期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.075006
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资金
- UK STFC
- Engineering and Physical Sciences Research Council [EP/H02395X/1, EP/D062837/1] Funding Source: researchfish
- Science and Technology Facilities Council [ST/F00205X/1] Funding Source: researchfish
- EPSRC [EP/H02395X/1, EP/D062837/1, EP/H002189/1] Funding Source: UKRI
- STFC [ST/F00205X/1] Funding Source: UKRI
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 mono-scaling in the dissipation range. This presents a strong observational constraint on theories of dissipation mechanisms in turbulent collisionless plasmas.
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