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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/85522
Ver los metadatos del registro completo
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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:UNLP2025-09-29T11:16:30Zoai: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:13292025-09-29 11:16:30.992SEDICI (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 |
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SEDICI (UNLP) |
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Universidad Nacional de La Plata |
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UNLP |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
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