Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions

Details Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1216..202g&link_type=abstract

TWELFTH INTERNATIONAL SOLAR WIND CONFERENCE. AIP Conference Proceedings, Volume 1216, pp. 202-205 (2010).

Mathematics

Probability

1

Solar Wind, Solar Magnetism, Magnetohydrodynamic Waves, Interplanetary Magnetic Fields, Turbulence, Probability, Particle Emission, Solar Wind, Magnetic Field And Magnetism, Mhd Waves, Plasma Waves, Turbulence, Interplanetary Magnetic Fields, Turbulence, Probability Theory

Scientific paper

Recent studies have compared properties of the magnetic field in simulations of Hall MHD turbulence with spacecraft data, focusing on methods used to identify classical discontinuities and intermittency statistics. Comparison of ACE solar wind data and simulations of 2D and 3D turbulence shows good agreement in waiting-time analysis of magnetic discontinuities, and in the related distribution of magnetic field increments. This supports the idea that the magnetic structures in the solar wind may emerge fast and locally from nonlinear dynamics that can be understood in the framework of nonlinear MHD theory. The analysis suggests that small scale current sheets form spontaneously and rapidly enough that some of the observed solar wind discontinuities may be locally generated, representing boundaries between interacting flux tubes.

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