Terahertz Photometer to Observe Solar Flares in Continuum

Autores
Marcon, Rogerio; Kaufmann, Pierre; Fernandes, Luis Olavo T.; Godoy, Rodolfo Alfredo; Marun, Adolfo Hector; Bortolucci, Emilio C.; Zakia, Maria Beny; Diniz, José Alexandre; Kudaka, Amauri S.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Solar observations at sub-THz frequencies detected a new flare spectral component peaking in the THz range, simultaneously with the well known microwaves component, bringing challenging constraints for interpretation. Higher THz frequencies observations are needed to understand the nature of the mechanisms occurring in flares. A THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. The telescope was designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions. A Golay cell detector is preceded by low-pass filters to suppress visible and near IR radiation, a band-pass filter, and a chopper. A prototype was assembled to demonstrate the new concept and the system performance. It can detect temperature variations smaller than 1 K for data sampled at a rate of 10/s, smoothed for intervals larger than 4 s. For a 76 mm aperture, this corresponds to small solar burst intensities at THz frequencies. A system with 3 and 7 THz photometers is being built for solar flare observations on board of stratospheric balloon missions.
Fil: Marcon, Rogerio. “Bernard Lyot” Solar Observatory; Brasil. Universidade Estadual de Campinas; Brasil
Fil: Kaufmann, Pierre. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil. Universidade Estadual de Campinas; Brasil
Fil: Fernandes, Luis Olavo T.. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil
Fil: Godoy, Rodolfo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Marun, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Bortolucci, Emilio C.. Universidade Estadual de Campinas; Brasil
Fil: Zakia, Maria Beny. Universidade Estadual de Campinas; Brasil
Fil: Diniz, José Alexandre. Universidade Estadual de Campinas; Brasil
Fil: Kudaka, Amauri S.. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil
Materia
SOLAR FLARES THZ CONTINUUM
THZ PHOTOMETRY
THZ SYSTEMS
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:11336/211395
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/211395
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Terahertz Photometer to Observe Solar Flares in ContinuumMarcon, RogerioKaufmann, PierreFernandes, Luis Olavo T.Godoy, Rodolfo AlfredoMarun, Adolfo HectorBortolucci, Emilio C.Zakia, Maria BenyDiniz, José AlexandreKudaka, Amauri S.SOLAR FLARES THZ CONTINUUMTHZ PHOTOMETRYTHZ SYSTEMShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Solar observations at sub-THz frequencies detected a new flare spectral component peaking in the THz range, simultaneously with the well known microwaves component, bringing challenging constraints for interpretation. Higher THz frequencies observations are needed to understand the nature of the mechanisms occurring in flares. A THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. The telescope was designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions. A Golay cell detector is preceded by low-pass filters to suppress visible and near IR radiation, a band-pass filter, and a chopper. A prototype was assembled to demonstrate the new concept and the system performance. It can detect temperature variations smaller than 1 K for data sampled at a rate of 10/s, smoothed for intervals larger than 4 s. For a 76 mm aperture, this corresponds to small solar burst intensities at THz frequencies. A system with 3 and 7 THz photometers is being built for solar flare observations on board of stratospheric balloon missions.Fil: Marcon, Rogerio. “Bernard Lyot” Solar Observatory; Brasil. Universidade Estadual de Campinas; BrasilFil: Kaufmann, Pierre. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil. Universidade Estadual de Campinas; BrasilFil: Fernandes, Luis Olavo T.. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; BrasilFil: Godoy, Rodolfo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Marun, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Bortolucci, Emilio C.. Universidade Estadual de Campinas; BrasilFil: Zakia, Maria Beny. Universidade Estadual de Campinas; BrasilFil: Diniz, José Alexandre. Universidade Estadual de Campinas; BrasilFil: Kudaka, Amauri S.. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; BrasilSpringer2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/211395Marcon, Rogerio; Kaufmann, Pierre; Fernandes, Luis Olavo T.; Godoy, Rodolfo Alfredo; Marun, Adolfo Hector; et al.; Terahertz Photometer to Observe Solar Flares in Continuum; Springer; Journal Of Infrared Millimeter And Terahertz Waves; 33; 2; 2-2012; 192-2051866-6892CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10762-011-9866-6info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10762-011-9866-6info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1112.2908info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:09:39Zoai:ri.conicet.gov.ar:11336/211395instacron: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:34982025-09-10 13:09:39.609CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Terahertz Photometer to Observe Solar Flares in Continuum
title Terahertz Photometer to Observe Solar Flares in Continuum
spellingShingle Terahertz Photometer to Observe Solar Flares in Continuum
Marcon, Rogerio
SOLAR FLARES THZ CONTINUUM
THZ PHOTOMETRY
THZ SYSTEMS
title_short Terahertz Photometer to Observe Solar Flares in Continuum
title_full Terahertz Photometer to Observe Solar Flares in Continuum
title_fullStr Terahertz Photometer to Observe Solar Flares in Continuum
title_full_unstemmed Terahertz Photometer to Observe Solar Flares in Continuum
title_sort Terahertz Photometer to Observe Solar Flares in Continuum
dc.creator.none.fl_str_mv Marcon, Rogerio
Kaufmann, Pierre
Fernandes, Luis Olavo T.
Godoy, Rodolfo Alfredo
Marun, Adolfo Hector
Bortolucci, Emilio C.
Zakia, Maria Beny
Diniz, José Alexandre
Kudaka, Amauri S.
author Marcon, Rogerio
author_facet Marcon, Rogerio
Kaufmann, Pierre
Fernandes, Luis Olavo T.
Godoy, Rodolfo Alfredo
Marun, Adolfo Hector
Bortolucci, Emilio C.
Zakia, Maria Beny
Diniz, José Alexandre
Kudaka, Amauri S.
author_role author
author2 Kaufmann, Pierre
Fernandes, Luis Olavo T.
Godoy, Rodolfo Alfredo
Marun, Adolfo Hector
Bortolucci, Emilio C.
Zakia, Maria Beny
Diniz, José Alexandre
Kudaka, Amauri S.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv SOLAR FLARES THZ CONTINUUM
THZ PHOTOMETRY
THZ SYSTEMS
topic SOLAR FLARES THZ CONTINUUM
THZ PHOTOMETRY
THZ SYSTEMS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Solar observations at sub-THz frequencies detected a new flare spectral component peaking in the THz range, simultaneously with the well known microwaves component, bringing challenging constraints for interpretation. Higher THz frequencies observations are needed to understand the nature of the mechanisms occurring in flares. A THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. The telescope was designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions. A Golay cell detector is preceded by low-pass filters to suppress visible and near IR radiation, a band-pass filter, and a chopper. A prototype was assembled to demonstrate the new concept and the system performance. It can detect temperature variations smaller than 1 K for data sampled at a rate of 10/s, smoothed for intervals larger than 4 s. For a 76 mm aperture, this corresponds to small solar burst intensities at THz frequencies. A system with 3 and 7 THz photometers is being built for solar flare observations on board of stratospheric balloon missions.
Fil: Marcon, Rogerio. “Bernard Lyot” Solar Observatory; Brasil. Universidade Estadual de Campinas; Brasil
Fil: Kaufmann, Pierre. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil. Universidade Estadual de Campinas; Brasil
Fil: Fernandes, Luis Olavo T.. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil
Fil: Godoy, Rodolfo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Marun, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Bortolucci, Emilio C.. Universidade Estadual de Campinas; Brasil
Fil: Zakia, Maria Beny. Universidade Estadual de Campinas; Brasil
Fil: Diniz, José Alexandre. Universidade Estadual de Campinas; Brasil
Fil: Kudaka, Amauri S.. Universidade Presbiteriana Mackenzie. Escola de Engenharia. Centro de Radio Astronomia e Astrofisica; Brasil
description Solar observations at sub-THz frequencies detected a new flare spectral component peaking in the THz range, simultaneously with the well known microwaves component, bringing challenging constraints for interpretation. Higher THz frequencies observations are needed to understand the nature of the mechanisms occurring in flares. A THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. The telescope was designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions. A Golay cell detector is preceded by low-pass filters to suppress visible and near IR radiation, a band-pass filter, and a chopper. A prototype was assembled to demonstrate the new concept and the system performance. It can detect temperature variations smaller than 1 K for data sampled at a rate of 10/s, smoothed for intervals larger than 4 s. For a 76 mm aperture, this corresponds to small solar burst intensities at THz frequencies. A system with 3 and 7 THz photometers is being built for solar flare observations on board of stratospheric balloon missions.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/211395
Marcon, Rogerio; Kaufmann, Pierre; Fernandes, Luis Olavo T.; Godoy, Rodolfo Alfredo; Marun, Adolfo Hector; et al.; Terahertz Photometer to Observe Solar Flares in Continuum; Springer; Journal Of Infrared Millimeter And Terahertz Waves; 33; 2; 2-2012; 192-205
1866-6892
CONICET Digital
CONICET
url http://hdl.handle.net/11336/211395
identifier_str_mv Marcon, Rogerio; Kaufmann, Pierre; Fernandes, Luis Olavo T.; Godoy, Rodolfo Alfredo; Marun, Adolfo Hector; et al.; Terahertz Photometer to Observe Solar Flares in Continuum; Springer; Journal Of Infrared Millimeter And Terahertz Waves; 33; 2; 2-2012; 192-205
1866-6892
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10762-011-9866-6
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10762-011-9866-6
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1112.2908
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 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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score 12.993085

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