A cellular automaton model for coronal heating

We present a simple coronal heating model based on a cellular automaton approach. Following Parker's suggestion (1988), we consider the corona to be made up of elemental magnetic strands that accumulate magnetic stress due to the photospheric displacements of their footpoints. Magnetic energy i...

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Detalles Bibliográficos
Autores principales:	Fuentes, M.C.L., Klimchuk, J.A., Mandrini C.H., Webb D.F.
Formato:	SER
Materias:	Sun: activity Sun: corona Sun: magnetic fields
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p433_Fuentes
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_17439213_v7_nS286_p433_Fuentes
record_format	dspace
spelling	todo:paper_17439213_v7_nS286_p433_Fuentes2023-10-03T16:31:43Z A cellular automaton model for coronal heating Fuentes, M.C.L. Klimchuk, J.A. Mandrini C.H. Webb D.F. Sun: activity Sun: corona Sun: magnetic fields We present a simple coronal heating model based on a cellular automaton approach. Following Parker's suggestion (1988), we consider the corona to be made up of elemental magnetic strands that accumulate magnetic stress due to the photospheric displacements of their footpoints. Magnetic energy is eventually released in small scale reconnection events. The model consists of a 2D grid in which strand footpoints travel with random displacements simulating convective motions. Each time two strands interact, a critical condition is tested (as in self-organized critical models), and if the condition is fulfilled, the strands reconnect and energy is released. We model the plasma response to the heating events and obtain synthetic observations. We compare the output of the model with real observations from Hinode/XRT and discuss the implications of our results for coronal heating. © 2012 International Astronomical Union. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p433_Fuentes
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Sun: activity Sun: corona Sun: magnetic fields
spellingShingle	Sun: activity Sun: corona Sun: magnetic fields Fuentes, M.C.L. Klimchuk, J.A. Mandrini C.H. Webb D.F. A cellular automaton model for coronal heating
topic_facet	Sun: activity Sun: corona Sun: magnetic fields
description	We present a simple coronal heating model based on a cellular automaton approach. Following Parker's suggestion (1988), we consider the corona to be made up of elemental magnetic strands that accumulate magnetic stress due to the photospheric displacements of their footpoints. Magnetic energy is eventually released in small scale reconnection events. The model consists of a 2D grid in which strand footpoints travel with random displacements simulating convective motions. Each time two strands interact, a critical condition is tested (as in self-organized critical models), and if the condition is fulfilled, the strands reconnect and energy is released. We model the plasma response to the heating events and obtain synthetic observations. We compare the output of the model with real observations from Hinode/XRT and discuss the implications of our results for coronal heating. © 2012 International Astronomical Union.
format	SER
author	Fuentes, M.C.L. Klimchuk, J.A. Mandrini C.H. Webb D.F.
author_facet	Fuentes, M.C.L. Klimchuk, J.A. Mandrini C.H. Webb D.F.
author_sort	Fuentes, M.C.L.
title	A cellular automaton model for coronal heating
title_short	A cellular automaton model for coronal heating
title_full	A cellular automaton model for coronal heating
title_fullStr	A cellular automaton model for coronal heating
title_full_unstemmed	A cellular automaton model for coronal heating
title_sort	cellular automaton model for coronal heating
url	http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p433_Fuentes
work_keys_str_mv	AT fuentesmcl acellularautomatonmodelforcoronalheating AT klimchukja acellularautomatonmodelforcoronalheating AT mandrinich acellularautomatonmodelforcoronalheating AT webbdf acellularautomatonmodelforcoronalheating AT fuentesmcl cellularautomatonmodelforcoronalheating AT klimchukja cellularautomatonmodelforcoronalheating AT mandrinich cellularautomatonmodelforcoronalheating AT webbdf cellularautomatonmodelforcoronalheating
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A cellular automaton model for coronal heating

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