MHD turbulence and heating of the open field-line solar corona

This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations. Reflection from coronal inhomogeneities plays an important role in su...

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Published in:Nonlinear Processes in Geophysics
Main Authors: Matthaeus, William H., Mullan, D. J., Dmitruk, Pablo, Milano, L. J., Oughton, Sean
Format: Article in Journal/Newspaper
Language:English
Published: European Geoscience Union 2003
Subjects:
Online Access:https://hdl.handle.net/10289/8627
https://doi.org/10.5194/npg-10-93-2003
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author Matthaeus, William H.
Mullan, D. J.
Dmitruk, Pablo
Milano, L. J.
Oughton, Sean
author_facet Matthaeus, William H.
Mullan, D. J.
Dmitruk, Pablo
Milano, L. J.
Oughton, Sean
author_sort Matthaeus, William H.
collection The University of Waikato: Research Commons
container_issue 1/2
container_start_page 93
container_title Nonlinear Processes in Geophysics
container_volume 10
description This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations. Reflection from coronal inhomogeneities plays an important role in sustaining the cascade. Physical and observational constraints are discussed. Kinetic processes that convert cascaded energy into heat must occur in regions of turbulent small-scale reconnection, and may be similar in some respects to ion heating due to intense electron beams observed in the aurora.
format Article in Journal/Newspaper
genre Tromso
Tromso
genre_facet Tromso
Tromso
geographic Norway
Tromso
geographic_facet Norway
Tromso
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institution Open Polar
language English
long_lat ENVELOPE(16.546,16.546,68.801,68.801)
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op_coverage Tromso, NORWAY
op_doi https://doi.org/10.5194/npg-10-93-2003
op_relation Nonlinear Processes in Geophysics
Non-Linear Processes in Geophysics
https://hdl.handle.net/10289/8627
op_rights © Author(s) 2003. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
publishDate 2003
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spelling ftunivwaikato:oai:researchcommons.waikato.ac.nz:10289/8627 2025-04-20T14:45:49+00:00 MHD turbulence and heating of the open field-line solar corona Matthaeus, William H. Mullan, D. J. Dmitruk, Pablo Milano, L. J. Oughton, Sean Tromso, NORWAY 2003 application/pdf https://hdl.handle.net/10289/8627 https://doi.org/10.5194/npg-10-93-2003 en eng European Geoscience Union Nonlinear Processes in Geophysics Non-Linear Processes in Geophysics https://hdl.handle.net/10289/8627 © Author(s) 2003. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License. magnetohydrodynamics (MHD) Journal Article 2003 ftunivwaikato https://doi.org/10.5194/npg-10-93-2003 2025-03-26T04:23:16Z This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations. Reflection from coronal inhomogeneities plays an important role in sustaining the cascade. Physical and observational constraints are discussed. Kinetic processes that convert cascaded energy into heat must occur in regions of turbulent small-scale reconnection, and may be similar in some respects to ion heating due to intense electron beams observed in the aurora. Article in Journal/Newspaper Tromso Tromso The University of Waikato: Research Commons Norway Tromso ENVELOPE(16.546,16.546,68.801,68.801) Nonlinear Processes in Geophysics 10 1/2 93 100
spellingShingle magnetohydrodynamics (MHD)
Matthaeus, William H.
Mullan, D. J.
Dmitruk, Pablo
Milano, L. J.
Oughton, Sean
MHD turbulence and heating of the open field-line solar corona
title MHD turbulence and heating of the open field-line solar corona
title_full MHD turbulence and heating of the open field-line solar corona
title_fullStr MHD turbulence and heating of the open field-line solar corona
title_full_unstemmed MHD turbulence and heating of the open field-line solar corona
title_short MHD turbulence and heating of the open field-line solar corona
title_sort mhd turbulence and heating of the open field-line solar corona
topic magnetohydrodynamics (MHD)
topic_facet magnetohydrodynamics (MHD)
url https://hdl.handle.net/10289/8627
https://doi.org/10.5194/npg-10-93-2003