Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops

Autores
Nuevo, Federico Alberto; Mac Cormack, Cecilia; Lopez Fuentes, Marcelo Claudio; Vasquez, Alberto Marcos; Mandrini, Cristina Hemilse
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Due to their characteristic temperature and density, loop structures in active regions (ARs) can be seen bright in extreme ultraviolet (EUV) and soft X-ray images. The semiempirical determination of the three-dimensional (3D) distribution of basic physical parameters (electronic density and temperature, and magnetic field) is a key constraint for coronal heating models. In this work we develop a technique for the study of EUV bright loops based on differential emission measure (DEM) analysis and we first apply it to AR structures observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). The 3D structure and intensity of the magnetic field of the observed EUV loops are modeled using force-free field extrapolations based on magnetograms taken by the Helioseismic and Magnetic Imager (HMI) on board SDO. In this work we report the results obtained for several bright loops identified in different ARs. Our analysis indicates that the mean and width of the temperature distributions are nearly invariant along the loop lengths. For a particular loop we study its temporal evolution and find that these characteristics remain approximately constant for most of its life time. The appearance and disappearance of this loop occurs at time-scales much shorter than its life time of ≈ 2.5 hours. The results of this analysis are compared with numerical simulations using the zero-dimensional (0D) hydrodynamic model, Enthalpy-Based Thermal Evolution of Loops (EBTEL). We study two alternative heating scenarios: first, we apply a constant heating rate assuming loops in quasi-static equilibrium, and second, we heat the loops using impulsive events or nanoflares. We find that all the observed loops are overdense with respect to a quasi-static equilibrium solution and that the nanoflare heating better reproduces the observed densities and temperatures.
Fil: Nuevo, Federico Alberto. Universidad de Buenos Aires. Ciclo Básico Común; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mac Cormack, Cecilia. Universidad Nacional de Tres de Febrero. Departamento de Ciencia y Tecnologia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Lopez Fuentes, Marcelo Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Vasquez, Alberto Marcos. Universidad Nacional de Tres de Febrero. Departamento de Ciencia y Tecnologia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mandrini, Cristina Hemilse. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Materia
ACTIVE REGIONS, MAGNETIC FIELDS
ACTIVE REGIONS, STRUCTURE
CORONA E
CORONA, ACTIVE
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:11336/181811
Acceder
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spelling Three-Dimensional Reconstruction and Thermal Modeling of Observed LoopsNuevo, Federico AlbertoMac Cormack, CeciliaLopez Fuentes, Marcelo ClaudioVasquez, Alberto MarcosMandrini, Cristina HemilseACTIVE REGIONS, MAGNETIC FIELDSACTIVE REGIONS, STRUCTURECORONA ECORONA, ACTIVEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Due to their characteristic temperature and density, loop structures in active regions (ARs) can be seen bright in extreme ultraviolet (EUV) and soft X-ray images. The semiempirical determination of the three-dimensional (3D) distribution of basic physical parameters (electronic density and temperature, and magnetic field) is a key constraint for coronal heating models. In this work we develop a technique for the study of EUV bright loops based on differential emission measure (DEM) analysis and we first apply it to AR structures observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). The 3D structure and intensity of the magnetic field of the observed EUV loops are modeled using force-free field extrapolations based on magnetograms taken by the Helioseismic and Magnetic Imager (HMI) on board SDO. In this work we report the results obtained for several bright loops identified in different ARs. Our analysis indicates that the mean and width of the temperature distributions are nearly invariant along the loop lengths. For a particular loop we study its temporal evolution and find that these characteristics remain approximately constant for most of its life time. The appearance and disappearance of this loop occurs at time-scales much shorter than its life time of ≈ 2.5 hours. The results of this analysis are compared with numerical simulations using the zero-dimensional (0D) hydrodynamic model, Enthalpy-Based Thermal Evolution of Loops (EBTEL). We study two alternative heating scenarios: first, we apply a constant heating rate assuming loops in quasi-static equilibrium, and second, we heat the loops using impulsive events or nanoflares. We find that all the observed loops are overdense with respect to a quasi-static equilibrium solution and that the nanoflare heating better reproduces the observed densities and temperatures.Fil: Nuevo, Federico Alberto. Universidad de Buenos Aires. Ciclo Básico Común; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Mac Cormack, Cecilia. Universidad Nacional de Tres de Febrero. Departamento de Ciencia y Tecnologia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Lopez Fuentes, Marcelo Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Vasquez, Alberto Marcos. Universidad Nacional de Tres de Febrero. Departamento de Ciencia y Tecnologia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Mandrini, Cristina Hemilse. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaSpringer2020-12-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/181811Nuevo, Federico Alberto; Mac Cormack, Cecilia; Lopez Fuentes, Marcelo Claudio; Vasquez, Alberto Marcos; Mandrini, Cristina Hemilse; Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops; Springer; Solar Physics; 295; 12; 3-12-2020; 1-250038-09381573-093XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s11207-020-01739-4info:eu-repo/semantics/altIdentifier/doi/10.1007/s11207-020-01739-4info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2011.09575info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:18:15Zoai:ri.conicet.gov.ar:11336/181811instacron: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:34982025-10-22 12:18:16.164CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
title Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
spellingShingle Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
Nuevo, Federico Alberto
ACTIVE REGIONS, MAGNETIC FIELDS
ACTIVE REGIONS, STRUCTURE
CORONA E
CORONA, ACTIVE
title_short Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
title_full Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
title_fullStr Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
title_full_unstemmed Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
title_sort Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops
dc.creator.none.fl_str_mv Nuevo, Federico Alberto
Mac Cormack, Cecilia
Lopez Fuentes, Marcelo Claudio
Vasquez, Alberto Marcos
Mandrini, Cristina Hemilse
author Nuevo, Federico Alberto
author_facet Nuevo, Federico Alberto
Mac Cormack, Cecilia
Lopez Fuentes, Marcelo Claudio
Vasquez, Alberto Marcos
Mandrini, Cristina Hemilse
author_role author
author2 Mac Cormack, Cecilia
Lopez Fuentes, Marcelo Claudio
Vasquez, Alberto Marcos
Mandrini, Cristina Hemilse
author2_role author
author
author
author
dc.subject.none.fl_str_mv ACTIVE REGIONS, MAGNETIC FIELDS
ACTIVE REGIONS, STRUCTURE
CORONA E
CORONA, ACTIVE
topic ACTIVE REGIONS, MAGNETIC FIELDS
ACTIVE REGIONS, STRUCTURE
CORONA E
CORONA, ACTIVE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Due to their characteristic temperature and density, loop structures in active regions (ARs) can be seen bright in extreme ultraviolet (EUV) and soft X-ray images. The semiempirical determination of the three-dimensional (3D) distribution of basic physical parameters (electronic density and temperature, and magnetic field) is a key constraint for coronal heating models. In this work we develop a technique for the study of EUV bright loops based on differential emission measure (DEM) analysis and we first apply it to AR structures observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). The 3D structure and intensity of the magnetic field of the observed EUV loops are modeled using force-free field extrapolations based on magnetograms taken by the Helioseismic and Magnetic Imager (HMI) on board SDO. In this work we report the results obtained for several bright loops identified in different ARs. Our analysis indicates that the mean and width of the temperature distributions are nearly invariant along the loop lengths. For a particular loop we study its temporal evolution and find that these characteristics remain approximately constant for most of its life time. The appearance and disappearance of this loop occurs at time-scales much shorter than its life time of ≈ 2.5 hours. The results of this analysis are compared with numerical simulations using the zero-dimensional (0D) hydrodynamic model, Enthalpy-Based Thermal Evolution of Loops (EBTEL). We study two alternative heating scenarios: first, we apply a constant heating rate assuming loops in quasi-static equilibrium, and second, we heat the loops using impulsive events or nanoflares. We find that all the observed loops are overdense with respect to a quasi-static equilibrium solution and that the nanoflare heating better reproduces the observed densities and temperatures.
Fil: Nuevo, Federico Alberto. Universidad de Buenos Aires. Ciclo Básico Común; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mac Cormack, Cecilia. Universidad Nacional de Tres de Febrero. Departamento de Ciencia y Tecnologia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Lopez Fuentes, Marcelo Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Vasquez, Alberto Marcos. Universidad Nacional de Tres de Febrero. Departamento de Ciencia y Tecnologia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mandrini, Cristina Hemilse. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
description Due to their characteristic temperature and density, loop structures in active regions (ARs) can be seen bright in extreme ultraviolet (EUV) and soft X-ray images. The semiempirical determination of the three-dimensional (3D) distribution of basic physical parameters (electronic density and temperature, and magnetic field) is a key constraint for coronal heating models. In this work we develop a technique for the study of EUV bright loops based on differential emission measure (DEM) analysis and we first apply it to AR structures observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). The 3D structure and intensity of the magnetic field of the observed EUV loops are modeled using force-free field extrapolations based on magnetograms taken by the Helioseismic and Magnetic Imager (HMI) on board SDO. In this work we report the results obtained for several bright loops identified in different ARs. Our analysis indicates that the mean and width of the temperature distributions are nearly invariant along the loop lengths. For a particular loop we study its temporal evolution and find that these characteristics remain approximately constant for most of its life time. The appearance and disappearance of this loop occurs at time-scales much shorter than its life time of ≈ 2.5 hours. The results of this analysis are compared with numerical simulations using the zero-dimensional (0D) hydrodynamic model, Enthalpy-Based Thermal Evolution of Loops (EBTEL). We study two alternative heating scenarios: first, we apply a constant heating rate assuming loops in quasi-static equilibrium, and second, we heat the loops using impulsive events or nanoflares. We find that all the observed loops are overdense with respect to a quasi-static equilibrium solution and that the nanoflare heating better reproduces the observed densities and temperatures.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-03
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/11336/181811
Nuevo, Federico Alberto; Mac Cormack, Cecilia; Lopez Fuentes, Marcelo Claudio; Vasquez, Alberto Marcos; Mandrini, Cristina Hemilse; Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops; Springer; Solar Physics; 295; 12; 3-12-2020; 1-25
0038-0938
1573-093X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/181811
identifier_str_mv Nuevo, Federico Alberto; Mac Cormack, Cecilia; Lopez Fuentes, Marcelo Claudio; Vasquez, Alberto Marcos; Mandrini, Cristina Hemilse; Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops; Springer; Solar Physics; 295; 12; 3-12-2020; 1-25
0038-0938
1573-093X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s11207-020-01739-4
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11207-020-01739-4
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2011.09575
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
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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