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

      Greco, A.; Matthaeus, William H.; Servidio, Sergio; Dmitruk, Pablo; Wan, Minping; Oughton, Sean; Chuychai, P.
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      Statistical properties.pdf
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      DOI
       10.1063/1.3395836
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      Greco, A., Matthaeus, W. H., Servidio, S., Dmitruk, P., Wan, M., Chuychai, P. (2010). Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions. AIP Conference Proceedings, 1216, 202.
      Permanent Research Commons link: https://hdl.handle.net/10289/8589
      Abstract
      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.
      Date
      2010
      Type
      Journal Article
      Publisher
      American Institute of Physics
      Rights
      © 2010 American Institute of Physics.
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      • Computing and Mathematical Sciences Papers [1455]
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