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 i...

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Main Authors:	W. H. Matthaeus, D. J. Mullan, P. Dmitruk, L. Milano, S. Oughton
Format:	Article
Language:	English
Published:	Copernicus Publications 2003-01-01
Series:	Nonlinear Processes in Geophysics
Online Access:	http://www.nonlin-processes-geophys.net/10/93/2003/npg-10-93-2003.pdf

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spelling	doaj-96b47d1a991c42638ffd8cb0d0000b552020-11-25T00:56:50ZengCopernicus PublicationsNonlinear Processes in Geophysics1023-58091607-79462003-01-01101/293100MHD turbulence and heating of the open field-line solar coronaW. H. MatthaeusD. J. MullanP. DmitrukL. MilanoS. OughtonThis 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.http://www.nonlin-processes-geophys.net/10/93/2003/npg-10-93-2003.pdf
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	W. H. Matthaeus D. J. Mullan P. Dmitruk L. Milano S. Oughton
spellingShingle	W. H. Matthaeus D. J. Mullan P. Dmitruk L. Milano S. Oughton MHD turbulence and heating of the open field-line solar corona Nonlinear Processes in Geophysics
author_facet	W. H. Matthaeus D. J. Mullan P. Dmitruk L. Milano S. Oughton
author_sort	W. H. Matthaeus
title	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_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_sort	mhd turbulence and heating of the open field-line solar corona
publisher	Copernicus Publications
series	Nonlinear Processes in Geophysics
issn	1023-5809 1607-7946
publishDate	2003-01-01
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.
url	http://www.nonlin-processes-geophys.net/10/93/2003/npg-10-93-2003.pdf
work_keys_str_mv	AT whmatthaeus mhdturbulenceandheatingoftheopenfieldlinesolarcorona AT djmullan mhdturbulenceandheatingoftheopenfieldlinesolarcorona AT pdmitruk mhdturbulenceandheatingoftheopenfieldlinesolarcorona AT lmilano mhdturbulenceandheatingoftheopenfieldlinesolarcorona AT soughton mhdturbulenceandheatingoftheopenfieldlinesolarcorona
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MHD turbulence and heating of the open field-line solar corona

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