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

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...

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Autor principal: Dmitruk, Pablo Ariel
Publicado: 2010
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1216_n_p202_Greco
http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p202_Greco
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_0094243X_v1216_n_p202_Greco2023-06-08T15:09:07Z Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions Dmitruk, Pablo Ariel 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. © 2010 American Institute of Physics. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1216_n_p202_Greco http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p202_Greco
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description 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. © 2010 American Institute of Physics.
author Dmitruk, Pablo Ariel
spellingShingle Dmitruk, Pablo Ariel
Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions
author_facet Dmitruk, Pablo Ariel
author_sort Dmitruk, Pablo Ariel
title Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions
title_short Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions
title_full Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions
title_fullStr Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions
title_full_unstemmed Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions
title_sort statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-gaussian distributions
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1216_n_p202_Greco
http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p202_Greco
work_keys_str_mv AT dmitrukpabloariel statisticalpropertiesofsolarwinddiscontinuitiesintermittentturbulenceandrapidemergenceofnongaussiandistributions
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