Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...691l.111g&link_type=abstract
The Astrophysical Journal Letters, Volume 691, Issue 2, pp. L111-L114 (2009).
Astronomy and Astrophysics
Astronomy
19
Interplanetary Medium, Mhd, Plasmas, Solar Wind, Sun: Magnetic Fields, Turbulence
Scientific paper
The comparison between Advanced Composition Explorer (ACE) solar wind data and simulations of magnetohydrodynamic (MHD) turbulence shows a good agreement in the waiting-time analysis of magnetic field increments. Similarity between classical discontinuity identification and intermittency analysis suggests a dynamical connection between solar wind discontinuities and intermittent MHD turbulence. Probability distribution functions of increments in ACE data and in simulations reveal a robust structure consisting of small random currents, current cores, and intermittent current sheets. This adds to evidence that solar wind magnetic structures may emerge fast and locally from MHD turbulence.
Chuychai Piyanate
Dmitruk Pablo
Greco Andrés
Matthaeus William H.
Servidio Sergio
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