Direct estimates of nitrogen abundance for Seyfert 2 nuclei

Autores
Dors, Oli L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Valerdi, Mabel; Ilha, Gabriele S.; Oliveira, Celso B.; Riffel, Rogemar A.; Flury, Sophia; Arellano Córdova, K. Z.; Storchi Bergmann, T.; Riffel, Rogério; Almeida, Gleicy Caroline de; Morais, I N
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We derive the nitrogen and oxygen abundances in the narrow line regions (NLRs) of a sample of 38 local (z < 0.4) Seyfert 2 nuclei. For that, we consider narrow optical emission line intensities and direct estimates of the electron temperatures (Te-method). We obtain a new theoretical expression for the nitrogen ionization correction factor [ICF(N^+)] for NLRs. Applying this new ICF, we unexpectedly find that NLRs and disc HII regions exhibit similar ICF distributions. We find nitrogen abundances in the range 7.6 < 12+log(N/H) < 8.6(mean value 8.06±0.22) or 0.4 < (N/N⊙) <4.7,in the metallicity regime 8.3 < 12 + log(O/H) < 9.0. Our results indicate that the dispersion in N/H abundance for a fixed O/H value in AGNs of ∼0.2 dex agrees with that for disc H II regions with similar metallicity. We show that Seyfert 2 nuclei follow a similar (N/O)?(O/H) relation to the one followed by star-forming objects. Finally, we find that active galaxies called as "nitrogen-loud" observed at very high redshift (z > 5) show N/O values in consonance with those derived for local NLRs. This result indicates that the main star-formation event is completed in the early evolution stages of active galaxies.
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
Fil: Cardaci, Monica Viviana. 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. 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: Valerdi, Mabel. Instituto Nacional de Astrofísica, Óptica y Electrónica; México
Fil: Ilha, Gabriele S.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil
Fil: Oliveira, Celso B.. Universidade Do Vale Do Paraíba; Brasil
Fil: Riffel, Rogemar A.. Universidade Federal de Santa Maria; Brasil
Fil: Flury, Sophia. University of Massachusetts Amherst; Estados Unidos
Fil: Arellano Córdova, K. Z.. University of Edinburgh; Reino Unido
Fil: Storchi Bergmann, T.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Riffel, Rogério. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Almeida, Gleicy Caroline de. Universidade Do Vale Do Paraíba; Brasil
Fil: Morais, I N. Universidade Do Vale Do Paraíba; Brasil
Materia
ISM: ABUNDANCES
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
GALAXIES: SEYFERT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/257552
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/257552
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Direct estimates of nitrogen abundance for Seyfert 2 nucleiDors, Oli L.Cardaci, Monica VivianaHägele, Guillermo FedericoValerdi, MabelIlha, Gabriele S.Oliveira, Celso B.Riffel, Rogemar A.Flury, SophiaArellano Córdova, K. Z.Storchi Bergmann, T.Riffel, RogérioAlmeida, Gleicy Caroline deMorais, I NISM: ABUNDANCESGALAXIES: ABUNDANCESGALAXIES: ACTIVEGALAXIES: EVOLUTIONGALAXIES: NUCLEIGALAXIES: SEYFERThttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We derive the nitrogen and oxygen abundances in the narrow line regions (NLRs) of a sample of 38 local (z < 0.4) Seyfert 2 nuclei. For that, we consider narrow optical emission line intensities and direct estimates of the electron temperatures (Te-method). We obtain a new theoretical expression for the nitrogen ionization correction factor [ICF(N^+)] for NLRs. Applying this new ICF, we unexpectedly find that NLRs and disc HII regions exhibit similar ICF distributions. We find nitrogen abundances in the range 7.6 < 12+log(N/H) < 8.6(mean value 8.06±0.22) or 0.4 < (N/N⊙) <4.7,in the metallicity regime 8.3 < 12 + log(O/H) < 9.0. Our results indicate that the dispersion in N/H abundance for a fixed O/H value in AGNs of ∼0.2 dex agrees with that for disc H II regions with similar metallicity. We show that Seyfert 2 nuclei follow a similar (N/O)?(O/H) relation to the one followed by star-forming objects. Finally, we find that active galaxies called as "nitrogen-loud" observed at very high redshift (z > 5) show N/O values in consonance with those derived for local NLRs. This result indicates that the main star-formation event is completed in the early evolution stages of active galaxies.Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; BrasilFil: Cardaci, Monica Viviana. 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. 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: Valerdi, Mabel. Instituto Nacional de Astrofísica, Óptica y Electrónica; MéxicoFil: Ilha, Gabriele S.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; BrasilFil: Oliveira, Celso B.. Universidade Do Vale Do Paraíba; BrasilFil: Riffel, Rogemar A.. Universidade Federal de Santa Maria; BrasilFil: Flury, Sophia. University of Massachusetts Amherst; Estados UnidosFil: Arellano Córdova, K. Z.. University of Edinburgh; Reino UnidoFil: Storchi Bergmann, T.. Universidade Federal do Rio Grande do Sul; BrasilFil: Riffel, Rogério. Universidade Federal do Rio Grande do Sul; BrasilFil: Almeida, Gleicy Caroline de. Universidade Do Vale Do Paraíba; BrasilFil: Morais, I N. Universidade Do Vale Do Paraíba; BrasilWiley Blackwell Publishing, Inc2024-11info: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/11336/257552Dors, Oli L. ; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Valerdi, Mabel; Ilha, Gabriele S.; et al.; Direct estimates of nitrogen abundance for Seyfert 2 nuclei; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 534; 4; 11-2024; 3040-30540035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/534/4/3040/7823297info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae2253info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:36Zoai:ri.conicet.gov.ar:11336/257552instacron: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 09:55:37.18CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Direct estimates of nitrogen abundance for Seyfert 2 nuclei
title Direct estimates of nitrogen abundance for Seyfert 2 nuclei
spellingShingle Direct estimates of nitrogen abundance for Seyfert 2 nuclei
Dors, Oli L.
ISM: ABUNDANCES
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
GALAXIES: SEYFERT
title_short Direct estimates of nitrogen abundance for Seyfert 2 nuclei
title_full Direct estimates of nitrogen abundance for Seyfert 2 nuclei
title_fullStr Direct estimates of nitrogen abundance for Seyfert 2 nuclei
title_full_unstemmed Direct estimates of nitrogen abundance for Seyfert 2 nuclei
title_sort Direct estimates of nitrogen abundance for Seyfert 2 nuclei
dc.creator.none.fl_str_mv Dors, Oli L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Valerdi, Mabel
Ilha, Gabriele S.
Oliveira, Celso B.
Riffel, Rogemar A.
Flury, Sophia
Arellano Córdova, K. Z.
Storchi Bergmann, T.
Riffel, Rogério
Almeida, Gleicy Caroline de
Morais, I N
author Dors, Oli L.
author_facet Dors, Oli L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Valerdi, Mabel
Ilha, Gabriele S.
Oliveira, Celso B.
Riffel, Rogemar A.
Flury, Sophia
Arellano Córdova, K. Z.
Storchi Bergmann, T.
Riffel, Rogério
Almeida, Gleicy Caroline de
Morais, I N
author_role author
author2 Cardaci, Monica Viviana
Hägele, Guillermo Federico
Valerdi, Mabel
Ilha, Gabriele S.
Oliveira, Celso B.
Riffel, Rogemar A.
Flury, Sophia
Arellano Córdova, K. Z.
Storchi Bergmann, T.
Riffel, Rogério
Almeida, Gleicy Caroline de
Morais, I N
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ISM: ABUNDANCES
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
GALAXIES: SEYFERT
topic ISM: ABUNDANCES
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: NUCLEI
GALAXIES: SEYFERT
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 derive the nitrogen and oxygen abundances in the narrow line regions (NLRs) of a sample of 38 local (z < 0.4) Seyfert 2 nuclei. For that, we consider narrow optical emission line intensities and direct estimates of the electron temperatures (Te-method). We obtain a new theoretical expression for the nitrogen ionization correction factor [ICF(N^+)] for NLRs. Applying this new ICF, we unexpectedly find that NLRs and disc HII regions exhibit similar ICF distributions. We find nitrogen abundances in the range 7.6 < 12+log(N/H) < 8.6(mean value 8.06±0.22) or 0.4 < (N/N⊙) <4.7,in the metallicity regime 8.3 < 12 + log(O/H) < 9.0. Our results indicate that the dispersion in N/H abundance for a fixed O/H value in AGNs of ∼0.2 dex agrees with that for disc H II regions with similar metallicity. We show that Seyfert 2 nuclei follow a similar (N/O)?(O/H) relation to the one followed by star-forming objects. Finally, we find that active galaxies called as "nitrogen-loud" observed at very high redshift (z > 5) show N/O values in consonance with those derived for local NLRs. This result indicates that the main star-formation event is completed in the early evolution stages of active galaxies.
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
Fil: Cardaci, Monica Viviana. 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. 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: Valerdi, Mabel. Instituto Nacional de Astrofísica, Óptica y Electrónica; México
Fil: Ilha, Gabriele S.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil
Fil: Oliveira, Celso B.. Universidade Do Vale Do Paraíba; Brasil
Fil: Riffel, Rogemar A.. Universidade Federal de Santa Maria; Brasil
Fil: Flury, Sophia. University of Massachusetts Amherst; Estados Unidos
Fil: Arellano Córdova, K. Z.. University of Edinburgh; Reino Unido
Fil: Storchi Bergmann, T.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Riffel, Rogério. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Almeida, Gleicy Caroline de. Universidade Do Vale Do Paraíba; Brasil
Fil: Morais, I N. Universidade Do Vale Do Paraíba; Brasil
description We derive the nitrogen and oxygen abundances in the narrow line regions (NLRs) of a sample of 38 local (z < 0.4) Seyfert 2 nuclei. For that, we consider narrow optical emission line intensities and direct estimates of the electron temperatures (Te-method). We obtain a new theoretical expression for the nitrogen ionization correction factor [ICF(N^+)] for NLRs. Applying this new ICF, we unexpectedly find that NLRs and disc HII regions exhibit similar ICF distributions. We find nitrogen abundances in the range 7.6 < 12+log(N/H) < 8.6(mean value 8.06±0.22) or 0.4 < (N/N⊙) <4.7,in the metallicity regime 8.3 < 12 + log(O/H) < 9.0. Our results indicate that the dispersion in N/H abundance for a fixed O/H value in AGNs of ∼0.2 dex agrees with that for disc H II regions with similar metallicity. We show that Seyfert 2 nuclei follow a similar (N/O)?(O/H) relation to the one followed by star-forming objects. Finally, we find that active galaxies called as "nitrogen-loud" observed at very high redshift (z > 5) show N/O values in consonance with those derived for local NLRs. This result indicates that the main star-formation event is completed in the early evolution stages of active galaxies.
publishDate 2024
dc.date.none.fl_str_mv 2024-11
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/11336/257552
Dors, Oli L. ; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Valerdi, Mabel; Ilha, Gabriele S.; et al.; Direct estimates of nitrogen abundance for Seyfert 2 nuclei; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 534; 4; 11-2024; 3040-3054
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/257552
identifier_str_mv Dors, Oli L. ; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Valerdi, Mabel; Ilha, Gabriele S.; et al.; Direct estimates of nitrogen abundance for Seyfert 2 nuclei; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 534; 4; 11-2024; 3040-3054
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/534/4/3040/7823297
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae2253
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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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