Pseudostreamer influence on flux rope evolution

Autores
Sahade, Abril; Cécere, Mariana Andrea; Sieyra, María Valeria; Krause, Gustavo Javier; Cremades Fernandez, Maria Hebe; Costa, Andrea
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. A highly important aspect of solar activity is the coupling between eruptions and the surrounding coronal magnetic field topology, which determines the trajectory and morphology of the ejected plasma. Pseudostreamers (PSs) are coronal magnetic structures formed by arcs of twin loops capped by magnetic field lines from coronal holes of the same polarity that meet at a central spine. PSs contain a single magnetic null point in the spine, immediately above the closed field lines, which potentially influences the evolution of nearby flux ropes (FRs). Aims. Because of the impact of magnetic FR eruptions on space weather, we aim to improve current understanding of the deflection of coronal mass ejections (CMEs). To understand the net effect of PSs on FR eruptions, it is first necessary to study diverse and isolated-PS scenarios that are not influenced by other magnetic structures. Methods. We performed numerical simulations in which a FR structure is in the vicinity of a PS magnetic configuration. The combined magnetic field of the PS and the FR results in the formation of two magnetic null points. We evolve this scenario by numerically solving the magnetohydrodynamic equations in 2.5D. The simulations consider a fully ionised compressible ideal plasma in the presence of a gravitational field and a stratified atmosphere. Results. We find that the dynamic behaviour of the FR can be categorised into three different classes based on the FR trajectories and whether it is eruptive or confined. Our analysis indicates that the magnetic null points are decisive in the direction and intensity of the FR deflection and their hierarchy depends on the topological arrangement of the scenario. Moreover, the PS lobe acts as a magnetic cage enclosing the FR. We report that the total unsigned magnetic flux of the cage is a key parameter defining whether or not the FR is ejected.
Fil: Sahade, Abril. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Cécere, Mariana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Sieyra, María Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Katholikie Universiteit Leuven; Bélgica
Fil: Krause, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba; Argentina
Fil: Cremades Fernandez, Maria Hebe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Mendoza; Argentina
Fil: Costa, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Materia
MAGNETOHYDRODYNAMICS (MHD)
METHODS: NUMERICAL
SUN: CORONAL MASS EJECTIONS (CMES)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/203077
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/203077
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pseudostreamer influence on flux rope evolutionSahade, AbrilCécere, Mariana AndreaSieyra, María ValeriaKrause, Gustavo JavierCremades Fernandez, Maria HebeCosta, AndreaMAGNETOHYDRODYNAMICS (MHD)METHODS: NUMERICALSUN: CORONAL MASS EJECTIONS (CMES)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. A highly important aspect of solar activity is the coupling between eruptions and the surrounding coronal magnetic field topology, which determines the trajectory and morphology of the ejected plasma. Pseudostreamers (PSs) are coronal magnetic structures formed by arcs of twin loops capped by magnetic field lines from coronal holes of the same polarity that meet at a central spine. PSs contain a single magnetic null point in the spine, immediately above the closed field lines, which potentially influences the evolution of nearby flux ropes (FRs). Aims. Because of the impact of magnetic FR eruptions on space weather, we aim to improve current understanding of the deflection of coronal mass ejections (CMEs). To understand the net effect of PSs on FR eruptions, it is first necessary to study diverse and isolated-PS scenarios that are not influenced by other magnetic structures. Methods. We performed numerical simulations in which a FR structure is in the vicinity of a PS magnetic configuration. The combined magnetic field of the PS and the FR results in the formation of two magnetic null points. We evolve this scenario by numerically solving the magnetohydrodynamic equations in 2.5D. The simulations consider a fully ionised compressible ideal plasma in the presence of a gravitational field and a stratified atmosphere. Results. We find that the dynamic behaviour of the FR can be categorised into three different classes based on the FR trajectories and whether it is eruptive or confined. Our analysis indicates that the magnetic null points are decisive in the direction and intensity of the FR deflection and their hierarchy depends on the topological arrangement of the scenario. Moreover, the PS lobe acts as a magnetic cage enclosing the FR. We report that the total unsigned magnetic flux of the cage is a key parameter defining whether or not the FR is ejected.Fil: Sahade, Abril. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Cécere, Mariana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Sieyra, María Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Katholikie Universiteit Leuven; BélgicaFil: Krause, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Cremades Fernandez, Maria Hebe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Mendoza; ArgentinaFil: Costa, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaEDP Sciences2022-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/203077Sahade, Abril; Cécere, Mariana Andrea; Sieyra, María Valeria; Krause, Gustavo Javier; Cremades Fernandez, Maria Hebe; et al.; Pseudostreamer influence on flux rope evolution; EDP Sciences; Astronomy and Astrophysics; 662; A113; 6-2022; 1-90004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202243618info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/06/aa43618-22/aa43618-22.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:54Zoai:ri.conicet.gov.ar:11336/203077instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:46:54.445CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pseudostreamer influence on flux rope evolution
title Pseudostreamer influence on flux rope evolution
spellingShingle Pseudostreamer influence on flux rope evolution
Sahade, Abril
MAGNETOHYDRODYNAMICS (MHD)
METHODS: NUMERICAL
SUN: CORONAL MASS EJECTIONS (CMES)
title_short Pseudostreamer influence on flux rope evolution
title_full Pseudostreamer influence on flux rope evolution
title_fullStr Pseudostreamer influence on flux rope evolution
title_full_unstemmed Pseudostreamer influence on flux rope evolution
title_sort Pseudostreamer influence on flux rope evolution
dc.creator.none.fl_str_mv Sahade, Abril
Cécere, Mariana Andrea
Sieyra, María Valeria
Krause, Gustavo Javier
Cremades Fernandez, Maria Hebe
Costa, Andrea
author Sahade, Abril
author_facet Sahade, Abril
Cécere, Mariana Andrea
Sieyra, María Valeria
Krause, Gustavo Javier
Cremades Fernandez, Maria Hebe
Costa, Andrea
author_role author
author2 Cécere, Mariana Andrea
Sieyra, María Valeria
Krause, Gustavo Javier
Cremades Fernandez, Maria Hebe
Costa, Andrea
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv MAGNETOHYDRODYNAMICS (MHD)
METHODS: NUMERICAL
SUN: CORONAL MASS EJECTIONS (CMES)
topic MAGNETOHYDRODYNAMICS (MHD)
METHODS: NUMERICAL
SUN: CORONAL MASS EJECTIONS (CMES)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. A highly important aspect of solar activity is the coupling between eruptions and the surrounding coronal magnetic field topology, which determines the trajectory and morphology of the ejected plasma. Pseudostreamers (PSs) are coronal magnetic structures formed by arcs of twin loops capped by magnetic field lines from coronal holes of the same polarity that meet at a central spine. PSs contain a single magnetic null point in the spine, immediately above the closed field lines, which potentially influences the evolution of nearby flux ropes (FRs). Aims. Because of the impact of magnetic FR eruptions on space weather, we aim to improve current understanding of the deflection of coronal mass ejections (CMEs). To understand the net effect of PSs on FR eruptions, it is first necessary to study diverse and isolated-PS scenarios that are not influenced by other magnetic structures. Methods. We performed numerical simulations in which a FR structure is in the vicinity of a PS magnetic configuration. The combined magnetic field of the PS and the FR results in the formation of two magnetic null points. We evolve this scenario by numerically solving the magnetohydrodynamic equations in 2.5D. The simulations consider a fully ionised compressible ideal plasma in the presence of a gravitational field and a stratified atmosphere. Results. We find that the dynamic behaviour of the FR can be categorised into three different classes based on the FR trajectories and whether it is eruptive or confined. Our analysis indicates that the magnetic null points are decisive in the direction and intensity of the FR deflection and their hierarchy depends on the topological arrangement of the scenario. Moreover, the PS lobe acts as a magnetic cage enclosing the FR. We report that the total unsigned magnetic flux of the cage is a key parameter defining whether or not the FR is ejected.
Fil: Sahade, Abril. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Cécere, Mariana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Sieyra, María Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Katholikie Universiteit Leuven; Bélgica
Fil: Krause, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba; Argentina
Fil: Cremades Fernandez, Maria Hebe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Mendoza; Argentina
Fil: Costa, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
description Context. A highly important aspect of solar activity is the coupling between eruptions and the surrounding coronal magnetic field topology, which determines the trajectory and morphology of the ejected plasma. Pseudostreamers (PSs) are coronal magnetic structures formed by arcs of twin loops capped by magnetic field lines from coronal holes of the same polarity that meet at a central spine. PSs contain a single magnetic null point in the spine, immediately above the closed field lines, which potentially influences the evolution of nearby flux ropes (FRs). Aims. Because of the impact of magnetic FR eruptions on space weather, we aim to improve current understanding of the deflection of coronal mass ejections (CMEs). To understand the net effect of PSs on FR eruptions, it is first necessary to study diverse and isolated-PS scenarios that are not influenced by other magnetic structures. Methods. We performed numerical simulations in which a FR structure is in the vicinity of a PS magnetic configuration. The combined magnetic field of the PS and the FR results in the formation of two magnetic null points. We evolve this scenario by numerically solving the magnetohydrodynamic equations in 2.5D. The simulations consider a fully ionised compressible ideal plasma in the presence of a gravitational field and a stratified atmosphere. Results. We find that the dynamic behaviour of the FR can be categorised into three different classes based on the FR trajectories and whether it is eruptive or confined. Our analysis indicates that the magnetic null points are decisive in the direction and intensity of the FR deflection and their hierarchy depends on the topological arrangement of the scenario. Moreover, the PS lobe acts as a magnetic cage enclosing the FR. We report that the total unsigned magnetic flux of the cage is a key parameter defining whether or not the FR is ejected.
publishDate 2022
dc.date.none.fl_str_mv 2022-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/203077
Sahade, Abril; Cécere, Mariana Andrea; Sieyra, María Valeria; Krause, Gustavo Javier; Cremades Fernandez, Maria Hebe; et al.; Pseudostreamer influence on flux rope evolution; EDP Sciences; Astronomy and Astrophysics; 662; A113; 6-2022; 1-9
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/203077
identifier_str_mv Sahade, Abril; Cécere, Mariana Andrea; Sieyra, María Valeria; Krause, Gustavo Javier; Cremades Fernandez, Maria Hebe; et al.; Pseudostreamer influence on flux rope evolution; EDP Sciences; Astronomy and Astrophysics; 662; A113; 6-2022; 1-9
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202243618
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/06/aa43618-22/aa43618-22.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
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dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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