Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams

Autores
Dors, Oli L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Ilha, G. S.; Oliveira, C. B.; Riffel, R. A.; Riffel, R.; Krabbe, A. C.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the validity of optical diagnostic diagrams relying on emission-lines ratios and in the context of classifying Active Galactic Nuclei (AGNs) according to the cosmic metallicity evolution in the redshift range 0 ≤ z ≤ 11.2. In this regard, we fit the results of chemical evolution models (CEMs) to the radial gradients of the N/O abundances ratio derived through direct estimates of electron temperatures (Te-method) in a sample of four local spiral galaxies. This approach allows us to select representative CEMs and extrapolate the radial gradients to the nuclear regions of the galaxies in our sample, inferring in this way the central N/O and O/H abundances. The nuclear abundance predictions for theoretical galaxies from the selected CEMs, at distinct evolutionary stages, are used as input parameters in AGN photoionization models built with the CLOUDY code. We found that standard BPT diagnostic diagrams are able to classify AGNs with oxygen abundances 12+log(O/H)≳8.0 [(Z/Z⊙)≳0.2] at redshift z≲4. On the other hand, the He IIλ4685/Hβ versus [N II]λ6584/Hα diagram produces a reliable AGN classification independent of the evolutionary stage of these objects.
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
Fil: Cardaci, Monica Viviana. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Hägele, Guillermo Federico. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Ilha, G. S.. Universidade Do Vale Do Paraíba; Brasil
Fil: Oliveira, C. B.. Universidade Do Vale Do Paraíba; Brasil
Fil: Riffel, R. A.. Universidade de Sao Paulo; Brasil
Fil: Riffel, R.. Universidade Federal de Santa Maria; Brasil
Fil: Krabbe, A. C.. Universidade Federal do Rio Grande do Sul; Brasil
Materia
GALAXIES: SEYFERT
GALAXIES: ACTIVE
GALAXIES: ABUNDANCES
ISM: ABUNDANCES
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
ASTROPHYSICS
ASTROPHYSICS OF GALAXIES
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:11336/236127
Acceder
id CONICETDig_a5286772ac5a260a9f1586cad7daf902
oai_identifier_str oai:ri.conicet.gov.ar:11336/236127
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagramsDors, Oli L.Cardaci, Monica VivianaHägele, Guillermo FedericoIlha, G. S.Oliveira, C. B.Riffel, R. A.Riffel, R.Krabbe, A. C.GALAXIES: SEYFERTGALAXIES: ACTIVEGALAXIES: ABUNDANCESISM: ABUNDANCESGALAXIES: EVOLUTIONGALAXIES: NUCLEIASTROPHYSICSASTROPHYSICS OF GALAXIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the validity of optical diagnostic diagrams relying on emission-lines ratios and in the context of classifying Active Galactic Nuclei (AGNs) according to the cosmic metallicity evolution in the redshift range 0 ≤ z ≤ 11.2. In this regard, we fit the results of chemical evolution models (CEMs) to the radial gradients of the N/O abundances ratio derived through direct estimates of electron temperatures (Te-method) in a sample of four local spiral galaxies. This approach allows us to select representative CEMs and extrapolate the radial gradients to the nuclear regions of the galaxies in our sample, inferring in this way the central N/O and O/H abundances. The nuclear abundance predictions for theoretical galaxies from the selected CEMs, at distinct evolutionary stages, are used as input parameters in AGN photoionization models built with the CLOUDY code. We found that standard BPT diagnostic diagrams are able to classify AGNs with oxygen abundances 12+log(O/H)≳8.0 [(Z/Z⊙)≳0.2] at redshift z≲4. On the other hand, the He IIλ4685/Hβ versus [N II]λ6584/Hα diagram produces a reliable AGN classification independent of the evolutionary stage of these objects.Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; BrasilFil: Cardaci, Monica Viviana. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Hägele, Guillermo Federico. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Ilha, G. S.. Universidade Do Vale Do Paraíba; BrasilFil: Oliveira, C. B.. Universidade Do Vale Do Paraíba; BrasilFil: Riffel, R. A.. Universidade de Sao Paulo; BrasilFil: Riffel, R.. Universidade Federal de Santa Maria; BrasilFil: Krabbe, A. C.. Universidade Federal do Rio Grande do Sul; BrasilWiley Blackwell Publishing, Inc2024-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/236127Dors, Oli L. ; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Ilha, G. S.; Oliveira, C. B.; et al.; Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 527; 3; 1-2024; 8193-82120035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/527/3/8193/7459940info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad3667info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:48:15Zoai:ri.conicet.gov.ar:11336/236127instacron: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:34982025-09-03 09:48:16.203CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
title Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
spellingShingle Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
Dors, Oli L.
GALAXIES: SEYFERT
GALAXIES: ACTIVE
GALAXIES: ABUNDANCES
ISM: ABUNDANCES
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
ASTROPHYSICS
ASTROPHYSICS OF GALAXIES
title_short Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
title_full Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
title_fullStr Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
title_full_unstemmed Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
title_sort Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams
dc.creator.none.fl_str_mv Dors, Oli L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Ilha, G. S.
Oliveira, C. B.
Riffel, R. A.
Riffel, R.
Krabbe, A. C.
author Dors, Oli L.
author_facet Dors, Oli L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Ilha, G. S.
Oliveira, C. B.
Riffel, R. A.
Riffel, R.
Krabbe, A. C.
author_role author
author2 Cardaci, Monica Viviana
Hägele, Guillermo Federico
Ilha, G. S.
Oliveira, C. B.
Riffel, R. A.
Riffel, R.
Krabbe, A. C.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: SEYFERT
GALAXIES: ACTIVE
GALAXIES: ABUNDANCES
ISM: ABUNDANCES
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
ASTROPHYSICS
ASTROPHYSICS OF GALAXIES
topic GALAXIES: SEYFERT
GALAXIES: ACTIVE
GALAXIES: ABUNDANCES
ISM: ABUNDANCES
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
ASTROPHYSICS
ASTROPHYSICS OF GALAXIES
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 analyze the validity of optical diagnostic diagrams relying on emission-lines ratios and in the context of classifying Active Galactic Nuclei (AGNs) according to the cosmic metallicity evolution in the redshift range 0 ≤ z ≤ 11.2. In this regard, we fit the results of chemical evolution models (CEMs) to the radial gradients of the N/O abundances ratio derived through direct estimates of electron temperatures (Te-method) in a sample of four local spiral galaxies. This approach allows us to select representative CEMs and extrapolate the radial gradients to the nuclear regions of the galaxies in our sample, inferring in this way the central N/O and O/H abundances. The nuclear abundance predictions for theoretical galaxies from the selected CEMs, at distinct evolutionary stages, are used as input parameters in AGN photoionization models built with the CLOUDY code. We found that standard BPT diagnostic diagrams are able to classify AGNs with oxygen abundances 12+log(O/H)≳8.0 [(Z/Z⊙)≳0.2] at redshift z≲4. On the other hand, the He IIλ4685/Hβ versus [N II]λ6584/Hα diagram produces a reliable AGN classification independent of the evolutionary stage of these objects.
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
Fil: Cardaci, Monica Viviana. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Hägele, Guillermo Federico. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Ilha, G. S.. Universidade Do Vale Do Paraíba; Brasil
Fil: Oliveira, C. B.. Universidade Do Vale Do Paraíba; Brasil
Fil: Riffel, R. A.. Universidade de Sao Paulo; Brasil
Fil: Riffel, R.. Universidade Federal de Santa Maria; Brasil
Fil: Krabbe, A. C.. Universidade Federal do Rio Grande do Sul; Brasil
description We analyze the validity of optical diagnostic diagrams relying on emission-lines ratios and in the context of classifying Active Galactic Nuclei (AGNs) according to the cosmic metallicity evolution in the redshift range 0 ≤ z ≤ 11.2. In this regard, we fit the results of chemical evolution models (CEMs) to the radial gradients of the N/O abundances ratio derived through direct estimates of electron temperatures (Te-method) in a sample of four local spiral galaxies. This approach allows us to select representative CEMs and extrapolate the radial gradients to the nuclear regions of the galaxies in our sample, inferring in this way the central N/O and O/H abundances. The nuclear abundance predictions for theoretical galaxies from the selected CEMs, at distinct evolutionary stages, are used as input parameters in AGN photoionization models built with the CLOUDY code. We found that standard BPT diagnostic diagrams are able to classify AGNs with oxygen abundances 12+log(O/H)≳8.0 [(Z/Z⊙)≳0.2] at redshift z≲4. On the other hand, the He IIλ4685/Hβ versus [N II]λ6584/Hα diagram produces a reliable AGN classification independent of the evolutionary stage of these objects.
publishDate 2024
dc.date.none.fl_str_mv 2024-01
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/11336/236127
Dors, Oli L. ; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Ilha, G. S.; Oliveira, C. B.; et al.; Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 527; 3; 1-2024; 8193-8212
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/236127
identifier_str_mv Dors, Oli L. ; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Ilha, G. S.; Oliveira, C. B.; et al.; Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 527; 3; 1-2024; 8193-8212
0035-8711
CONICET Digital
CONICET
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/527/3/8193/7459940
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad3667
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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 13.13397

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