Optical and mid-infrared neon abundance determinations in star-forming regions

Autores
Dors Junior, Oli L.; Hägele, Guillermo Federico; Cardaci, Mónica Viviana; Pérez Montero, Enrique; Krabbe, Angela Cristina; Vílchez, José M.; Sales, Dinalva A.; Riffel, Rogério; Riffel, Rogemar A.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have used observational spectroscopic data of star-forming regions compiled from the literature and photoionization models to analyse the neon ionic abundances obtained using both optical and mid-infrared emission lines. Comparing Ne++/H+ ionic abundances from distinct methods, we have found that, on average, the abundances obtained via infrared emission lines are higher than those obtained via optical lines, by a factor of 4. Photoionization models with abundance variations along the radius of the hypothetical nebula provide a possible explanation for a large part of the difference between ionic abundances via optical and infrared emission lines. The ionization correction factor (ICF) for the neon is obtained from direct determinations of ionic fractions using infrared emission lines. We derive a constant Ne/O ratio (log Ne/O ≈ -0.70) for a large range of metallicities, independently of the ICF used to compute the neon total abundance.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: general
Galaxies: ISM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/85522
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/85522
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Optical and mid-infrared neon abundance determinations in star-forming regionsDors Junior, Oli L.Hägele, Guillermo FedericoCardaci, Mónica VivianaPérez Montero, EnriqueKrabbe, Angela CristinaVílchez, José M.Sales, Dinalva A.Riffel, RogérioRiffel, Rogemar A.Ciencias AstronómicasGalaxies: abundancesGalaxies: evolutionGalaxies: formationGalaxies: generalGalaxies: ISMWe have used observational spectroscopic data of star-forming regions compiled from the literature and photoionization models to analyse the neon ionic abundances obtained using both optical and mid-infrared emission lines. Comparing Ne<SUP>++</SUP>/H<SUP>+</SUP> ionic abundances from distinct methods, we have found that, on average, the abundances obtained via infrared emission lines are higher than those obtained via optical lines, by a factor of 4. Photoionization models with abundance variations along the radius of the hypothetical nebula provide a possible explanation for a large part of the difference between ionic abundances via optical and infrared emission lines. The ionization correction factor (ICF) for the neon is obtained from direct determinations of ionic fractions using infrared emission lines. We derive a constant Ne/O ratio (log Ne/O ≈ -0.70) for a large range of metallicities, independently of the ICF used to compute the neon total abundance.Facultad de Ciencias Astronómicas y Geofísicas2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2512-2528http://sedici.unlp.edu.ar/handle/10915/85522enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stt610info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:57:18Zoai:sedici.unlp.edu.ar:10915/85522Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:57:18.973SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Optical and mid-infrared neon abundance determinations in star-forming regions
title Optical and mid-infrared neon abundance determinations in star-forming regions
spellingShingle Optical and mid-infrared neon abundance determinations in star-forming regions
Dors Junior, Oli L.
Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: general
Galaxies: ISM
title_short Optical and mid-infrared neon abundance determinations in star-forming regions
title_full Optical and mid-infrared neon abundance determinations in star-forming regions
title_fullStr Optical and mid-infrared neon abundance determinations in star-forming regions
title_full_unstemmed Optical and mid-infrared neon abundance determinations in star-forming regions
title_sort Optical and mid-infrared neon abundance determinations in star-forming regions
dc.creator.none.fl_str_mv Dors Junior, Oli L.
Hägele, Guillermo Federico
Cardaci, Mónica Viviana
Pérez Montero, Enrique
Krabbe, Angela Cristina
Vílchez, José M.
Sales, Dinalva A.
Riffel, Rogério
Riffel, Rogemar A.
author Dors Junior, Oli L.
author_facet Dors Junior, Oli L.
Hägele, Guillermo Federico
Cardaci, Mónica Viviana
Pérez Montero, Enrique
Krabbe, Angela Cristina
Vílchez, José M.
Sales, Dinalva A.
Riffel, Rogério
Riffel, Rogemar A.
author_role author
author2 Hägele, Guillermo Federico
Cardaci, Mónica Viviana
Pérez Montero, Enrique
Krabbe, Angela Cristina
Vílchez, José M.
Sales, Dinalva A.
Riffel, Rogério
Riffel, Rogemar A.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: general
Galaxies: ISM
topic Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: general
Galaxies: ISM
dc.description.none.fl_txt_mv We have used observational spectroscopic data of star-forming regions compiled from the literature and photoionization models to analyse the neon ionic abundances obtained using both optical and mid-infrared emission lines. Comparing Ne<SUP>++</SUP>/H<SUP>+</SUP> ionic abundances from distinct methods, we have found that, on average, the abundances obtained via infrared emission lines are higher than those obtained via optical lines, by a factor of 4. Photoionization models with abundance variations along the radius of the hypothetical nebula provide a possible explanation for a large part of the difference between ionic abundances via optical and infrared emission lines. The ionization correction factor (ICF) for the neon is obtained from direct determinations of ionic fractions using infrared emission lines. We derive a constant Ne/O ratio (log Ne/O ≈ -0.70) for a large range of metallicities, independently of the ICF used to compute the neon total abundance.
Facultad de Ciencias Astronómicas y Geofísicas
description We have used observational spectroscopic data of star-forming regions compiled from the literature and photoionization models to analyse the neon ionic abundances obtained using both optical and mid-infrared emission lines. Comparing Ne<SUP>++</SUP>/H<SUP>+</SUP> ionic abundances from distinct methods, we have found that, on average, the abundances obtained via infrared emission lines are higher than those obtained via optical lines, by a factor of 4. Photoionization models with abundance variations along the radius of the hypothetical nebula provide a possible explanation for a large part of the difference between ionic abundances via optical and infrared emission lines. The ionization correction factor (ICF) for the neon is obtained from direct determinations of ionic fractions using infrared emission lines. We derive a constant Ne/O ratio (log Ne/O ≈ -0.70) for a large range of metallicities, independently of the ICF used to compute the neon total abundance.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/85522
url http://sedici.unlp.edu.ar/handle/10915/85522
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0035-8711
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stt610
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
2512-2528
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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