Sulphur abundance determinations in star-forming regions : I. Ionization correction factor
- Autores
- Dors, Oli L.; Pérez Montero, E.; Hägele, Guillermo Federico; Cardaci, Mónica Viviana; Krabbe, A. C.
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this work, we used a grid of photoionization models combined with stellar population synthesis models to derive reliable ionization correction factors (ICFs) for the sulphur in star-forming regions. These models cover a large range of nebular parameters and yielding ionic abundances in consonance with those derived through optical and infrared observational data of star-forming regions. From our theoretical ICFs, we suggested an α value of 3.27 ± 0.01 in the classical Stasińska formulae. We compared the total sulphur abundance in the gas phase of a large sample of objects by using our theoretical ICF and other approaches. In average, the differences between the determinations via the use of the different ICFs considered are similar to the uncertainties in the S/H estimations. Nevertheless, we noted that for some objects it could reach up to about 0.3 dex for the low-metallicity regime. Despite of the large scatter of the points, we found a trend of S/O ratio to decrease with the metallicity, independently of the ICF used to compute the sulphur total abundance.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata - Materia
-
Astronomía
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:10915/93863
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Sulphur abundance determinations in star-forming regions : I. Ionization correction factorDors, Oli L.Pérez Montero, E.Hägele, Guillermo FedericoCardaci, Mónica VivianaKrabbe, A. C.Astronomíagalaxies: abundancesgalaxies: evolutiongalaxies: formationgalaxies: generalgalaxies: ISMIn this work, we used a grid of photoionization models combined with stellar population synthesis models to derive reliable ionization correction factors (ICFs) for the sulphur in star-forming regions. These models cover a large range of nebular parameters and yielding ionic abundances in consonance with those derived through optical and infrared observational data of star-forming regions. From our theoretical ICFs, we suggested an α value of 3.27 ± 0.01 in the classical Stasińska formulae. We compared the total sulphur abundance in the gas phase of a large sample of objects by using our theoretical ICF and other approaches. In average, the differences between the determinations via the use of the different ICFs considered are similar to the uncertainties in the S/H estimations. Nevertheless, we noted that for some objects it could reach up to about 0.3 dex for the low-metallicity regime. Despite of the large scatter of the points, we found a trend of S/O ratio to decrease with the metallicity, independently of the ICF used to compute the sulphur total abundance.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2016-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf4407-4424http://sedici.unlp.edu.ar/handle/10915/93863enginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/456/4/4407/1036277?redirectedFrom=fulltextinfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/35921info:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2995info:eu-repo/semantics/altIdentifier/hdl/11336/35921info: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:UNLP2025-09-29T11:19:26Zoai:sedici.unlp.edu.ar:10915/93863Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:27.036SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
title |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
spellingShingle |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor Dors, Oli L. Astronomía galaxies: abundances galaxies: evolution galaxies: formation galaxies: general galaxies: ISM |
title_short |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
title_full |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
title_fullStr |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
title_full_unstemmed |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
title_sort |
Sulphur abundance determinations in star-forming regions : I. Ionization correction factor |
dc.creator.none.fl_str_mv |
Dors, Oli L. Pérez Montero, E. Hägele, Guillermo Federico Cardaci, Mónica Viviana Krabbe, A. C. |
author |
Dors, Oli L. |
author_facet |
Dors, Oli L. Pérez Montero, E. Hägele, Guillermo Federico Cardaci, Mónica Viviana Krabbe, A. C. |
author_role |
author |
author2 |
Pérez Montero, E. Hägele, Guillermo Federico Cardaci, Mónica Viviana Krabbe, A. C. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Astronomía galaxies: abundances galaxies: evolution galaxies: formation galaxies: general galaxies: ISM |
topic |
Astronomía galaxies: abundances galaxies: evolution galaxies: formation galaxies: general galaxies: ISM |
dc.description.none.fl_txt_mv |
In this work, we used a grid of photoionization models combined with stellar population synthesis models to derive reliable ionization correction factors (ICFs) for the sulphur in star-forming regions. These models cover a large range of nebular parameters and yielding ionic abundances in consonance with those derived through optical and infrared observational data of star-forming regions. From our theoretical ICFs, we suggested an α value of 3.27 ± 0.01 in the classical Stasińska formulae. We compared the total sulphur abundance in the gas phase of a large sample of objects by using our theoretical ICF and other approaches. In average, the differences between the determinations via the use of the different ICFs considered are similar to the uncertainties in the S/H estimations. Nevertheless, we noted that for some objects it could reach up to about 0.3 dex for the low-metallicity regime. Despite of the large scatter of the points, we found a trend of S/O ratio to decrease with the metallicity, independently of the ICF used to compute the sulphur total abundance. Facultad de Ciencias Astronómicas y Geofísicas Instituto de Astrofísica de La Plata |
description |
In this work, we used a grid of photoionization models combined with stellar population synthesis models to derive reliable ionization correction factors (ICFs) for the sulphur in star-forming regions. These models cover a large range of nebular parameters and yielding ionic abundances in consonance with those derived through optical and infrared observational data of star-forming regions. From our theoretical ICFs, we suggested an α value of 3.27 ± 0.01 in the classical Stasińska formulae. We compared the total sulphur abundance in the gas phase of a large sample of objects by using our theoretical ICF and other approaches. In average, the differences between the determinations via the use of the different ICFs considered are similar to the uncertainties in the S/H estimations. Nevertheless, we noted that for some objects it could reach up to about 0.3 dex for the low-metallicity regime. Despite of the large scatter of the points, we found a trend of S/O ratio to decrease with the metallicity, independently of the ICF used to compute the sulphur total abundance. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03 |
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/10915/93863 |
url |
http://sedici.unlp.edu.ar/handle/10915/93863 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/456/4/4407/1036277?redirectedFrom=fulltext info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/35921 info:eu-repo/semantics/altIdentifier/issn/0035-8711 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2995 info:eu-repo/semantics/altIdentifier/hdl/11336/35921 |
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) |
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application/pdf 4407-4424 |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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