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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/22444
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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 Técnicas2025-09-29T10:28:37Zoai: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:34982025-09-29 10:28:37.759CONICET 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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13.070432 |