Analysis of the heliospheric current sheet's local structure based on a magnetic model

8 p.

Detalles Bibliográficos
Autores: Arrazola Pérez, David|||0000-0001-6355-9862, Blanco Ávalos, Juan José|||0000-0002-8666-0696, Hidalgo Moreno, Miguel Ángel|||0000-0003-1617-2037
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad de Alcalá (UAH)
Repositorio:e_Buah Biblioteca Digital Universidad de Alcalá
Idioma:inglés
OAI Identifier:oai:ebuah.uah.es:10017/68702
Acceso en línea:http://hdl.handle.net/10017/68702
https://dx.doi.org/10.1051/0004-6361/202142474
Access Level:acceso abierto
Palabra clave:Sun: heliosphere
Sun: magnetic fields
Solar wind
Física
Astronomía
Physics
Astronomy
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spelling Analysis of the heliospheric current sheet's local structure based on a magnetic modelArrazola Pérez, David|||0000-0001-6355-9862Blanco Ávalos, Juan José|||0000-0002-8666-0696Hidalgo Moreno, Miguel Ángel|||0000-0003-1617-2037Sun: heliosphereSun: magnetic fieldsSolar windFísicaAstronomíaPhysicsAstronomy8 p.Context. An approach to the problem of estimating several physical properties of the heliospheric current sheet (HCS) local structure from a single spacecraft observation point of view was published in 2003. This method, HYperbolic TAngent ROtation (HYTARO), is based on the following two main assumptions: (a) that the HCS is locally flat, and (b) that its magnetic topology is described by a modified Harris field. Aims. A revision of HYTARO by including the spacecraft?s trajectory and developing a more precise procedure able to reduce the number of the required fit parameters is presented in this paper. Methods. This magnetic topology is proposed for the HCS?s local field at 1AU, and it was applied as a fit function to a collection of 40 HCScrossings detected by the WIND spacecraft during the solar minimum. The estimated HCS local parameters (i.e., orientation and width) are consistent with previous works, which used the minimum variance analysis or the coplanarity variance analysis, and this is inferred from HYTARO results. One of the points of discussion about HYTARO was determining if it was necessary to apply two or three rotations to characterize the field?s relative orientation with respect to the current sheet (CS) plane. As principal component analysis (PCA) is a method to decompose a set of data into no correlated components by identifying eigenvalues and eigenvectors, it is feasible to analyze the possibility of reducing the dimensionality of the problem. Results. HYTARO gives a qualitative description of the observed magnetic field during an HCS crossing. The number of free parameters from the original HYTARO method has been reduced including the relative spacecraft trajectory through the CS and adding a background field related to each Cartesian component. Further, PCA has been implemented to justify applying two rotations with the HYTAROmodel. The dimensionality is another way to explore the number of rotations needed to relate the field in the local system with the field in GSE coordinates.Ministerio de Economía y CompetitividadFondo Europeo de Desarrollo Regional (FEDER)20222022-03-30journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10017/68702https://dx.doi.org/10.1051/0004-6361/202142474reponame:e_Buah Biblioteca Digital Universidad de Alcaláinstname:Universidad de Alcalá (UAH)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-107806GB-I00 ORCA, ORCT, MINICALMA Y CALMA. OBSERVANDO DE LA INTERACCION SOL-TIERRA Y EL ENTORNO TERRESTRE. CONTRIBUCION ESPAÑOLA A LA NEUTRON MONITOR DATA BASEopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ebuah.uah.es:10017/687022026-06-18T11:13:07Z
dc.title.none.fl_str_mv Analysis of the heliospheric current sheet's local structure based on a magnetic model
title Analysis of the heliospheric current sheet's local structure based on a magnetic model
spellingShingle Analysis of the heliospheric current sheet's local structure based on a magnetic model
Arrazola Pérez, David|||0000-0001-6355-9862
Sun: heliosphere
Sun: magnetic fields
Solar wind
Física
Astronomía
Physics
Astronomy
title_short Analysis of the heliospheric current sheet's local structure based on a magnetic model
title_full Analysis of the heliospheric current sheet's local structure based on a magnetic model
title_fullStr Analysis of the heliospheric current sheet's local structure based on a magnetic model
title_full_unstemmed Analysis of the heliospheric current sheet's local structure based on a magnetic model
title_sort Analysis of the heliospheric current sheet's local structure based on a magnetic model
dc.creator.none.fl_str_mv Arrazola Pérez, David|||0000-0001-6355-9862
Blanco Ávalos, Juan José|||0000-0002-8666-0696
Hidalgo Moreno, Miguel Ángel|||0000-0003-1617-2037
author Arrazola Pérez, David|||0000-0001-6355-9862
author_facet Arrazola Pérez, David|||0000-0001-6355-9862
Blanco Ávalos, Juan José|||0000-0002-8666-0696
Hidalgo Moreno, Miguel Ángel|||0000-0003-1617-2037
author_role author
author2 Blanco Ávalos, Juan José|||0000-0002-8666-0696
Hidalgo Moreno, Miguel Ángel|||0000-0003-1617-2037
author2_role author
author
dc.subject.none.fl_str_mv Sun: heliosphere
Sun: magnetic fields
Solar wind
Física
Astronomía
Physics
Astronomy
topic Sun: heliosphere
Sun: magnetic fields
Solar wind
Física
Astronomía
Physics
Astronomy
description 8 p.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-03-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10017/68702
https://dx.doi.org/10.1051/0004-6361/202142474
url http://hdl.handle.net/10017/68702
https://dx.doi.org/10.1051/0004-6361/202142474
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-107806GB-I00 ORCA, ORCT, MINICALMA Y CALMA. OBSERVANDO DE LA INTERACCION SOL-TIERRA Y EL ENTORNO TERRESTRE. CONTRIBUCION ESPAÑOLA A LA NEUTRON MONITOR DATA BASE
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:e_Buah Biblioteca Digital Universidad de Alcalá
instname:Universidad de Alcalá (UAH)
instname_str Universidad de Alcalá (UAH)
reponame_str e_Buah Biblioteca Digital Universidad de Alcalá
collection e_Buah Biblioteca Digital Universidad de Alcalá
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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