The Magnetic Helicity of an Interplanetary Hot Flux Rope

In the last years, interest in the study of the relationship between the magnetic helicity of solar active regions and the one contained in the interplanetary structures has grown. This has lead us to compute the helicity content of an interplanetary hot tube observed by Wind on October 24-25, 1995,...

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Autores principales:	Dasso, S., Mandrini, C.H., Démoulin, P., Velli M., Bruno R., Malara F.
Formato:	CONF
Materias:	Computational geometry Cylinders (shapes) Solar energy Solar wind Constant current Cylindrical geometry Force free fields Free parameters Magnetic helicity Solar active regions Three models Twist angles Magnetism
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0094243X_v679_n_p786_Dasso
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0094243X_v679_n_p786_Dasso
record_format	dspace
spelling	todo:paper_0094243X_v679_n_p786_Dasso2023-10-03T14:56:07Z The Magnetic Helicity of an Interplanetary Hot Flux Rope Dasso, S. Mandrini, C.H. Démoulin, P. Velli M. Bruno R. Malara F. Computational geometry Cylinders (shapes) Solar energy Solar wind Constant current Cylindrical geometry Force free fields Free parameters Magnetic helicity Solar active regions Three models Twist angles Magnetism In the last years, interest in the study of the relationship between the magnetic helicity of solar active regions and the one contained in the interplanetary structures has grown. This has lead us to compute the helicity content of an interplanetary hot tube observed by Wind on October 24-25, 1995, applying three different approaches in cylindrical geometry: a linear force-free field, a constant twist angle, and a non force-free model with constant current. We have fitted the set of free parameters for each of the three models, finding that the determined magnetic helicity values are very similar when using the same orientation for the flux tube. From our point of view, these results imply that, whatever be the model used, magnetic helicity is a well-determined quantity and, thus, it is worth using it to understand the link between solar and interplanetary phenomena. © 2003 American Institute of Physics. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0094243X_v679_n_p786_Dasso
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Computational geometry Cylinders (shapes) Solar energy Solar wind Constant current Cylindrical geometry Force free fields Free parameters Magnetic helicity Solar active regions Three models Twist angles Magnetism
spellingShingle	Computational geometry Cylinders (shapes) Solar energy Solar wind Constant current Cylindrical geometry Force free fields Free parameters Magnetic helicity Solar active regions Three models Twist angles Magnetism Dasso, S. Mandrini, C.H. Démoulin, P. Velli M. Bruno R. Malara F. The Magnetic Helicity of an Interplanetary Hot Flux Rope
topic_facet	Computational geometry Cylinders (shapes) Solar energy Solar wind Constant current Cylindrical geometry Force free fields Free parameters Magnetic helicity Solar active regions Three models Twist angles Magnetism
description	In the last years, interest in the study of the relationship between the magnetic helicity of solar active regions and the one contained in the interplanetary structures has grown. This has lead us to compute the helicity content of an interplanetary hot tube observed by Wind on October 24-25, 1995, applying three different approaches in cylindrical geometry: a linear force-free field, a constant twist angle, and a non force-free model with constant current. We have fitted the set of free parameters for each of the three models, finding that the determined magnetic helicity values are very similar when using the same orientation for the flux tube. From our point of view, these results imply that, whatever be the model used, magnetic helicity is a well-determined quantity and, thus, it is worth using it to understand the link between solar and interplanetary phenomena. © 2003 American Institute of Physics.
format	CONF
author	Dasso, S. Mandrini, C.H. Démoulin, P. Velli M. Bruno R. Malara F.
author_facet	Dasso, S. Mandrini, C.H. Démoulin, P. Velli M. Bruno R. Malara F.
author_sort	Dasso, S.
title	The Magnetic Helicity of an Interplanetary Hot Flux Rope
title_short	The Magnetic Helicity of an Interplanetary Hot Flux Rope
title_full	The Magnetic Helicity of an Interplanetary Hot Flux Rope
title_fullStr	The Magnetic Helicity of an Interplanetary Hot Flux Rope
title_full_unstemmed	The Magnetic Helicity of an Interplanetary Hot Flux Rope
title_sort	magnetic helicity of an interplanetary hot flux rope
url	http://hdl.handle.net/20.500.12110/paper_0094243X_v679_n_p786_Dasso
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The Magnetic Helicity of an Interplanetary Hot Flux Rope

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