On experimental evidence of chaotic dynamics over short time scales in solar wind and cometary data using nonlinear prediction techniques

Details On experimental evidence of chaotic dynamics over short time scales in solar wind and cometary data using nonlinear prediction techniques On experimental evidence of chaotic dynamics over short time scales in solar wind and cometary data using nonlinear prediction techniques

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..151..341p&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 151, no. 2, p. 341-350

Physics

9

Chaos, Cometary Magnetospheres, Interplanetary Magnetic Fields, Solar Wind, Entropy, Flux Transfer Events, Heos Satellites, Magnetohydrodynamics, Pioneer Space Probes, Solar Magnetic Field, Turbulence Models

Scientific paper

Strong indications of chaotic dynamics underlying interplanetary and cometary magnetic field fluctuations over short time scales are identified using HEOS-2 spacecraft (at 1 AU), Pioneer 10 (at 4.8 AU), Pioneer 11 (at 20 AU) and ICE (Giacobini-Zinner cometary environment) high-resolution measurements. Other non-chaotic candidate processes, such as linear deterministic models, fractal Brownian motion, and linear gaussian stochastic models are rejected at a high confidence level using nonlinear prediction methods. Experimental proofs of phase correlations are obtained. Assuming chaotic dynamics, estimations of the Kolmogorov--Sinai entropy are provided.

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