Sigmoidal diagnostics with SOHO/CDS

Autores
Del Zanna, G.; Gibson, S. E.; Mason, H. E.; Pike, C. D.; Mandrini, Cristina Hemilse
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During the third Whole Sun Month Campaign (August 18 - September 14, 1999), the evolution of the active region NOAA 8668 was followed during its meridian passage and at the limb (Sigmoid JOP 106), with simultaneous observations with the Solar and Heliospheric Observatory (SOHO), and with other instruments, both satellite and ground-based. On August 21st, a small flare, associated with a brightening of the sigmoidal structure, occurred. SOHO Coronal Diagnostic Spectrometer (CDS) observations of this small flare are presented. Coronal temperatures and densities of the sigmoid are estimated. High transition region densities (in the range 2.5-7 × 10 11 cm -3), obtained using O IV, are present in the brightenings associated with the flare. At coronal level, high temperatures of at least 8 MK were reached, as shown by strong Fe XIX emission. After this small flare, relatively strong blue-shifts (⋍ 30 km/s) are observed in coronal lines, located at the two ends of a small loop system associated with the sigmoid.
Fil: Del Zanna, G.. University of Cambridge; Reino Unido
Fil: Gibson, S. E.. University of Cambridge; Reino Unido
Fil: Mason, H. E.. University of Cambridge; Reino Unido
Fil: Pike, C. D.. Rutherford Appleton Laboratory; Reino Unido
Fil: Mandrini, Cristina Hemilse. Consejo Nacional de Investigaciónes 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
Solar Corona
Euv Brightenings
Solar Flares
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22444
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/22444
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Sigmoidal diagnostics with SOHO/CDSDel Zanna, G.Gibson, S. E.Mason, H. E.Pike, C. D.Mandrini, Cristina HemilseSolar CoronaEuv BrighteningsSolar Flareshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1During the third Whole Sun Month Campaign (August 18 - September 14, 1999), the evolution of the active region NOAA 8668 was followed during its meridian passage and at the limb (Sigmoid JOP 106), with simultaneous observations with the Solar and Heliospheric Observatory (SOHO), and with other instruments, both satellite and ground-based. On August 21st, a small flare, associated with a brightening of the sigmoidal structure, occurred. SOHO Coronal Diagnostic Spectrometer (CDS) observations of this small flare are presented. Coronal temperatures and densities of the sigmoid are estimated. High transition region densities (in the range 2.5-7 × 10 <sup>11</sup> cm <sup>-3</sup>), obtained using O IV, are present in the brightenings associated with the flare. At coronal level, high temperatures of at least 8 MK were reached, as shown by strong Fe XIX emission. After this small flare, relatively strong blue-shifts (⋍ 30 km/s) are observed in coronal lines, located at the two ends of a small loop system associated with the sigmoid.Fil: Del Zanna, G.. University of Cambridge; Reino UnidoFil: Gibson, S. E.. University of Cambridge; Reino UnidoFil: Mason, H. E.. University of Cambridge; Reino UnidoFil: Pike, C. D.. Rutherford Appleton Laboratory; Reino UnidoFil: Mandrini, Cristina Hemilse. Consejo Nacional de Investigaciónes 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; ArgentinaElsevier2002-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22444Del Zanna, G.; Gibson, S. E.; Mason, H. E.; Pike, C. D.; Mandrini, Cristina Hemilse; Sigmoidal diagnostics with SOHO/CDS; Elsevier; Advances in Space Research; 30; 3; 1-2002; 551-5560273-1177CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0273117702003411info:eu-repo/semantics/altIdentifier/doi/10.1016/S0273-1177(02)00341-1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:25:43Zoai:ri.conicet.gov.ar:11336/22444instacron: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:34982025-10-15 15:25:43.726CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Sigmoidal diagnostics with SOHO/CDS
title Sigmoidal diagnostics with SOHO/CDS
spellingShingle Sigmoidal diagnostics with SOHO/CDS
Del Zanna, G.
Solar Corona
Euv Brightenings
Solar Flares
title_short Sigmoidal diagnostics with SOHO/CDS
title_full Sigmoidal diagnostics with SOHO/CDS
title_fullStr Sigmoidal diagnostics with SOHO/CDS
title_full_unstemmed Sigmoidal diagnostics with SOHO/CDS
title_sort Sigmoidal diagnostics with SOHO/CDS
dc.creator.none.fl_str_mv Del Zanna, G.
Gibson, S. E.
Mason, H. E.
Pike, C. D.
Mandrini, Cristina Hemilse
author Del Zanna, G.
author_facet Del Zanna, G.
Gibson, S. E.
Mason, H. E.
Pike, C. D.
Mandrini, Cristina Hemilse
author_role author
author2 Gibson, S. E.
Mason, H. E.
Pike, C. D.
Mandrini, Cristina Hemilse
author2_role author
author
author
author
dc.subject.none.fl_str_mv Solar Corona
Euv Brightenings
Solar Flares
topic Solar Corona
Euv Brightenings
Solar Flares
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv During the third Whole Sun Month Campaign (August 18 - September 14, 1999), the evolution of the active region NOAA 8668 was followed during its meridian passage and at the limb (Sigmoid JOP 106), with simultaneous observations with the Solar and Heliospheric Observatory (SOHO), and with other instruments, both satellite and ground-based. On August 21st, a small flare, associated with a brightening of the sigmoidal structure, occurred. SOHO Coronal Diagnostic Spectrometer (CDS) observations of this small flare are presented. Coronal temperatures and densities of the sigmoid are estimated. High transition region densities (in the range 2.5-7 × 10 <sup>11</sup> cm <sup>-3</sup>), obtained using O IV, are present in the brightenings associated with the flare. At coronal level, high temperatures of at least 8 MK were reached, as shown by strong Fe XIX emission. After this small flare, relatively strong blue-shifts (⋍ 30 km/s) are observed in coronal lines, located at the two ends of a small loop system associated with the sigmoid.
Fil: Del Zanna, G.. University of Cambridge; Reino Unido
Fil: Gibson, S. E.. University of Cambridge; Reino Unido
Fil: Mason, H. E.. University of Cambridge; Reino Unido
Fil: Pike, C. D.. Rutherford Appleton Laboratory; Reino Unido
Fil: Mandrini, Cristina Hemilse. Consejo Nacional de Investigaciónes 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 During the third Whole Sun Month Campaign (August 18 - September 14, 1999), the evolution of the active region NOAA 8668 was followed during its meridian passage and at the limb (Sigmoid JOP 106), with simultaneous observations with the Solar and Heliospheric Observatory (SOHO), and with other instruments, both satellite and ground-based. On August 21st, a small flare, associated with a brightening of the sigmoidal structure, occurred. SOHO Coronal Diagnostic Spectrometer (CDS) observations of this small flare are presented. Coronal temperatures and densities of the sigmoid are estimated. High transition region densities (in the range 2.5-7 × 10 <sup>11</sup> cm <sup>-3</sup>), obtained using O IV, are present in the brightenings associated with the flare. At coronal level, high temperatures of at least 8 MK were reached, as shown by strong Fe XIX emission. After this small flare, relatively strong blue-shifts (⋍ 30 km/s) are observed in coronal lines, located at the two ends of a small loop system associated with the sigmoid.
publishDate 2002
dc.date.none.fl_str_mv 2002-01
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/11336/22444
Del Zanna, G.; Gibson, S. E.; Mason, H. E.; Pike, C. D.; Mandrini, Cristina Hemilse; Sigmoidal diagnostics with SOHO/CDS; Elsevier; Advances in Space Research; 30; 3; 1-2002; 551-556
0273-1177
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22444
identifier_str_mv Del Zanna, G.; Gibson, S. E.; Mason, H. E.; Pike, C. D.; Mandrini, Cristina Hemilse; Sigmoidal diagnostics with SOHO/CDS; Elsevier; Advances in Space Research; 30; 3; 1-2002; 551-556
0273-1177
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0273117702003411
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0273-1177(02)00341-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 13.22299

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