Testing for an attractor in the low-speed solar wind flow

Details Testing for an attractor in the low-speed solar wind flow Testing for an attractor in the low-speed solar wind flow

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..471..251m&link_type=abstract

The solar wind nine conference. AIP Conference Proceedings, Volume 471, pp. 251-254 (1999).

Nonlinear Sciences

Chaotic Dynamics

2

Particle Emission, Solar Wind, Chaotic Dynamics, Low-Dimensional Chaos

Scientific paper

We analyze a time series of velocities of the low-speed stream measured by the Helios spacecraft in the inner heliosphere. We use moving average and singular-value decomposition filters to give a faithful representation of the solar wind nonlinear behavior. We have shown that trajectories describing the system in the inertial manifold of phase space asymptotically approach the attractor of low-dimension. The obtained characteristics of the attractor are significantly different from those of the surrogate data. Thus these results show that the inner heliosphere is nonlinear and likely a deterministic chaotic system.

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