Analysis of large scale MHD quantities in expanding magnetic clouds

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Magnetic clouds (MCs) transport the magnetic flux and helicity released by the Sun. They are generally modeled as a static flux rope traveling in the solar wind, though they can present signatures of expansion. We analyze three expanding MCs using a self-similar free radial expansion model with a cy...

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Autores principales: Nakwacki, M.S., Dasso, S., Mandrini, C.H., Démoulin, P.
Formato: JOUR
Materias:
Driver gases
Ejecta
Interplanetary magnetic fields
Magnetic clouds
Clouds
Flux pinning
Fluxes
Magnetic devices
Magnetic fields
Magnetic flux
Magnetism
Mechanics
Modal analysis
Solar energy
Solar wind
Static analysis
Wind power
Elsevier (CO)
Expansion model
Flux ropes
Free fields
Helicity
Initial conditions
Large scales
Magnetic (CE)
Magnetic clouds (MC)
Magnetic energies
Magnetic helicity
Per unit length
Radial expansions
Self similar
Magnetic materials
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_13646826_v70_n10_p1318_Nakwacki
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_13646826_v70_n10_p1318_Nakwacki2023-10-03T16:11:14Z Analysis of large scale MHD quantities in expanding magnetic clouds Nakwacki, M.S. Dasso, S. Mandrini, C.H. Démoulin, P. Driver gases Ejecta Interplanetary magnetic fields Magnetic clouds Clouds Flux pinning Fluxes Magnetic devices Magnetic fields Magnetic flux Magnetism Mechanics Modal analysis Solar energy Solar wind Static analysis Wind power Elsevier (CO) Expansion model Flux ropes Free fields Helicity Initial conditions Large scales Magnetic (CE) Magnetic clouds (MC) Magnetic energies Magnetic helicity Per unit length Radial expansions Self similar Magnetic materials Magnetic clouds (MCs) transport the magnetic flux and helicity released by the Sun. They are generally modeled as a static flux rope traveling in the solar wind, though they can present signatures of expansion. We analyze three expanding MCs using a self-similar free radial expansion model with a cylindrical linear force-free field (i.e., Lundquist solution) as the initial condition. We derive expressions for the magnetic fluxes, the magnetic helicity and the magnetic energy per unit length along the flux tube. We find that these quantities do not differ more than 25 % when using the static or expansion model. © 2008 Elsevier Ltd. All rights reserved. Fil:Nakwacki, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mandrini, C.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13646826_v70_n10_p1318_Nakwacki
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Driver gases
Ejecta
Interplanetary magnetic fields
Magnetic clouds
Clouds
Flux pinning
Fluxes
Magnetic devices
Magnetic fields
Magnetic flux
Magnetism
Mechanics
Modal analysis
Solar energy
Solar wind
Static analysis
Wind power
Elsevier (CO)
Expansion model
Flux ropes
Free fields
Helicity
Initial conditions
Large scales
Magnetic (CE)
Magnetic clouds (MC)
Magnetic energies
Magnetic helicity
Per unit length
Radial expansions
Self similar
Magnetic materials
spellingShingle Driver gases
Ejecta
Interplanetary magnetic fields
Magnetic clouds
Clouds
Flux pinning
Fluxes
Magnetic devices
Magnetic fields
Magnetic flux
Magnetism
Mechanics
Modal analysis
Solar energy
Solar wind
Static analysis
Wind power
Elsevier (CO)
Expansion model
Flux ropes
Free fields
Helicity
Initial conditions
Large scales
Magnetic (CE)
Magnetic clouds (MC)
Magnetic energies
Magnetic helicity
Per unit length
Radial expansions
Self similar
Magnetic materials
Nakwacki, M.S.
Dasso, S.
Mandrini, C.H.
Démoulin, P.
Analysis of large scale MHD quantities in expanding magnetic clouds
topic_facet Driver gases
Ejecta
Interplanetary magnetic fields
Magnetic clouds
Clouds
Flux pinning
Fluxes
Magnetic devices
Magnetic fields
Magnetic flux
Magnetism
Mechanics
Modal analysis
Solar energy
Solar wind
Static analysis
Wind power
Elsevier (CO)
Expansion model
Flux ropes
Free fields
Helicity
Initial conditions
Large scales
Magnetic (CE)
Magnetic clouds (MC)
Magnetic energies
Magnetic helicity
Per unit length
Radial expansions
Self similar
Magnetic materials
description Magnetic clouds (MCs) transport the magnetic flux and helicity released by the Sun. They are generally modeled as a static flux rope traveling in the solar wind, though they can present signatures of expansion. We analyze three expanding MCs using a self-similar free radial expansion model with a cylindrical linear force-free field (i.e., Lundquist solution) as the initial condition. We derive expressions for the magnetic fluxes, the magnetic helicity and the magnetic energy per unit length along the flux tube. We find that these quantities do not differ more than 25 % when using the static or expansion model. © 2008 Elsevier Ltd. All rights reserved.
format JOUR
author Nakwacki, M.S.
Dasso, S.
Mandrini, C.H.
Démoulin, P.
author_facet Nakwacki, M.S.
Dasso, S.
Mandrini, C.H.
Démoulin, P.
author_sort Nakwacki, M.S.
title Analysis of large scale MHD quantities in expanding magnetic clouds
title_short Analysis of large scale MHD quantities in expanding magnetic clouds
title_full Analysis of large scale MHD quantities in expanding magnetic clouds
title_fullStr Analysis of large scale MHD quantities in expanding magnetic clouds
title_full_unstemmed Analysis of large scale MHD quantities in expanding magnetic clouds
title_sort analysis of large scale mhd quantities in expanding magnetic clouds
url http://hdl.handle.net/20.500.12110/paper_13646826_v70_n10_p1318_Nakwacki
work_keys_str_mv AT nakwackims analysisoflargescalemhdquantitiesinexpandingmagneticclouds
AT dassos analysisoflargescalemhdquantitiesinexpandingmagneticclouds
AT mandrinich analysisoflargescalemhdquantitiesinexpandingmagneticclouds
AT demoulinp analysisoflargescalemhdquantitiesinexpandingmagneticclouds
_version_ 1807314969787629568

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