Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å
- Autores
- Mauas, Pablo Jacobo David; Fernández Borda, Roberto; Luoni, Maria Luisa
- Año de publicación
- 2002
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present a simple atomic model for the synthesis of the Al I resonance lines, near the Ca II H and K lines. We study whether the computed profiles are influenced by the choice of the atomic parameters and find that, although several cross sections are not known accurately, the line profiles do not depend on them and are therefore useful as diagnostics of the atmospheric structure. We study which transitions need not to be included in the model, in order to reduce as much as possible the computing time. We compare the profiles computed for a standard model of the quiet solar atmosphere with the observations and find very good agreement. We found that the inclusion of the proper line-blanketing opacity is fundamental for an accurate calculation of the ionization balance and that irradiation by UV lines originating in the transition region does not affect the AI I emission.
Fil: Mauas, Pablo Jacobo David. 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
Fil: Fernández Borda, Roberto. 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
Fil: Luoni, Maria Luisa. 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
-
ATOMIC PROCESSES
LINE: FORMATION
LINE: PROFILES
STARS: CHROMOSPHERES
SUN: CHROMOSPHERE - 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:11336/218138
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Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 ÅMauas, Pablo Jacobo DavidFernández Borda, RobertoLuoni, Maria LuisaATOMIC PROCESSESLINE: FORMATIONLINE: PROFILESSTARS: CHROMOSPHERESSUN: CHROMOSPHEREhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a simple atomic model for the synthesis of the Al I resonance lines, near the Ca II H and K lines. We study whether the computed profiles are influenced by the choice of the atomic parameters and find that, although several cross sections are not known accurately, the line profiles do not depend on them and are therefore useful as diagnostics of the atmospheric structure. We study which transitions need not to be included in the model, in order to reduce as much as possible the computing time. We compare the profiles computed for a standard model of the quiet solar atmosphere with the observations and find very good agreement. We found that the inclusion of the proper line-blanketing opacity is fundamental for an accurate calculation of the ionization balance and that irradiation by UV lines originating in the transition region does not affect the AI I emission.Fil: Mauas, Pablo Jacobo David. 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; ArgentinaFil: Fernández Borda, Roberto. 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; ArgentinaFil: Luoni, Maria Luisa. 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; ArgentinaIOP Publishing2002-10info: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/11336/218138Mauas, Pablo Jacobo David; Fernández Borda, Roberto; Luoni, Maria Luisa; Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å; IOP Publishing; Astrophysical Journal Supplement Series; 142; 2; 10-2002; 285-2930067-0049CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/342042info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1086/342042info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:19:51Zoai:ri.conicet.gov.ar:11336/218138instacron: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 10:19:51.396CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
title |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
spellingShingle |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å Mauas, Pablo Jacobo David ATOMIC PROCESSES LINE: FORMATION LINE: PROFILES STARS: CHROMOSPHERES SUN: CHROMOSPHERE |
title_short |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
title_full |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
title_fullStr |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
title_full_unstemmed |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
title_sort |
Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å |
dc.creator.none.fl_str_mv |
Mauas, Pablo Jacobo David Fernández Borda, Roberto Luoni, Maria Luisa |
author |
Mauas, Pablo Jacobo David |
author_facet |
Mauas, Pablo Jacobo David Fernández Borda, Roberto Luoni, Maria Luisa |
author_role |
author |
author2 |
Fernández Borda, Roberto Luoni, Maria Luisa |
author2_role |
author author |
dc.subject.none.fl_str_mv |
ATOMIC PROCESSES LINE: FORMATION LINE: PROFILES STARS: CHROMOSPHERES SUN: CHROMOSPHERE |
topic |
ATOMIC PROCESSES LINE: FORMATION LINE: PROFILES STARS: CHROMOSPHERES SUN: CHROMOSPHERE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We present a simple atomic model for the synthesis of the Al I resonance lines, near the Ca II H and K lines. We study whether the computed profiles are influenced by the choice of the atomic parameters and find that, although several cross sections are not known accurately, the line profiles do not depend on them and are therefore useful as diagnostics of the atmospheric structure. We study which transitions need not to be included in the model, in order to reduce as much as possible the computing time. We compare the profiles computed for a standard model of the quiet solar atmosphere with the observations and find very good agreement. We found that the inclusion of the proper line-blanketing opacity is fundamental for an accurate calculation of the ionization balance and that irradiation by UV lines originating in the transition region does not affect the AI I emission. Fil: Mauas, Pablo Jacobo David. 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 Fil: Fernández Borda, Roberto. 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 Fil: Luoni, Maria Luisa. 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 |
We present a simple atomic model for the synthesis of the Al I resonance lines, near the Ca II H and K lines. We study whether the computed profiles are influenced by the choice of the atomic parameters and find that, although several cross sections are not known accurately, the line profiles do not depend on them and are therefore useful as diagnostics of the atmospheric structure. We study which transitions need not to be included in the model, in order to reduce as much as possible the computing time. We compare the profiles computed for a standard model of the quiet solar atmosphere with the observations and find very good agreement. We found that the inclusion of the proper line-blanketing opacity is fundamental for an accurate calculation of the ionization balance and that irradiation by UV lines originating in the transition region does not affect the AI I emission. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-10 |
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/11336/218138 Mauas, Pablo Jacobo David; Fernández Borda, Roberto; Luoni, Maria Luisa; Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å; IOP Publishing; Astrophysical Journal Supplement Series; 142; 2; 10-2002; 285-293 0067-0049 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/218138 |
identifier_str_mv |
Mauas, Pablo Jacobo David; Fernández Borda, Roberto; Luoni, Maria Luisa; Blue lines as chromospheric diagnostics: The Al I lines at 3944 and 3961 Å; IOP Publishing; Astrophysical Journal Supplement Series; 142; 2; 10-2002; 285-293 0067-0049 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1086/342042 info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1086/342042 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
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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1844614173687808000 |
score |
13.070432 |