Generalized dimensions for fluctuations in the solar wind

Details Generalized dimensions for fluctuations in the solar wind Generalized dimensions for fluctuations in the solar wind

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrve..72a7202m&link_type=abstract

Physical Review E, vol. 72, Issue 1, id. 017202

Physics

Fluid Dynamics

13

Time Series Analysis, Fractals, Solar Wind Plasma, Sources Of Solar Wind, Fractals In Fluid Dynamics

Scientific paper

We analyze time series of velocities of the solar wind plasma including the outward-directed component of Alfvénic turbulence within slow wind observed by the Helios 2 spacecraft in the inner heliosphere. We demonstrate that the influence of noise in the data can be efficiently reduced by a singular-value decomposition filter. The resulting generalized dimensions show a multifractal structure of the solar wind attractor in the inner heliosphere. The obtained multifractal spectrum is consistent with that for the multifractal measure on the self-similar weighted baker’s map with two parameters describing uniform compression and natural invariant measure on the attractor of the system.

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