Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS

Autores
Carvalho, S.P.; Dors, O. L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Nora Cristina; Pérez Montero, E.; Monteiro, A.F.; Armah, M.; Freitas Lemes, P.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 active galactic nuclei and the N2 = log([N II]λ6584/H a) emission-line intensity ratio. This calibration was derived through the [OIII]λ5007/[O II]λ3727 versus N2 diagram containing observational data and photoionization model results obtained with the CLOUDY code. The observational sample consists of 463 confirmed Seyfert 2 nuclei (redshift z ≤ 0.4) taken from the Sloan Digital Sky Survey DR7 data set. The obtained Z-N2 relation is valid for the range 0.3 ≤ (Z/Z⊙) ≤ 2.0 that corresponds to -0.7 ≤ (N2) ≤ 0.6. The effects of varying the ionization parameter (U), electron density and the slope of the spectral energy distribution on the Z estimations are of the order of the uncertainty produced by the error measurements of N2. This result indicates the large reliability of our Z -N2 calibration. A relation between U and the [OIII]/[O II] line ratio, almost independent of other nebular parameter, was obtained.
Fil: Carvalho, S.P.. Universidade Do Vale Do Paraiba; Brasil
Fil: Dors, O. L.. Universidade Do Vale Do Paraiba; 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: Krabbe, Nora Cristina. Universidade Do Vale Do Paraiba; Brasil
Fil: Pérez Montero, E.. Instituto de Astrofísica de Andalucía; España
Fil: Monteiro, A.F.. Universidade Do Vale Do Paraiba; Brasil
Fil: Armah, M.. Universidade Do Vale Do Paraiba; Brasil
Fil: Freitas Lemes, P.. Universidade Do Vale Do Paraiba; Brasil
Materia
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
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:11336/144111
Acceder
id CONICETDig_189c6775b19885a911fcc5dd48c11a17
oai_identifier_str oai:ri.conicet.gov.ar:11336/144111
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSSCarvalho, S.P.Dors, O. L.Cardaci, Monica VivianaHägele, Guillermo FedericoKrabbe, Nora CristinaPérez Montero, E.Monteiro, A.F.Armah, M.Freitas Lemes, P.GALAXIES: ABUNDANCESGALAXIES: ACTIVEGALAXIES: EVOLUTIONGALAXIES: FORMATIONGALAXIES: ISMGALAXIES: NUCLEIGALAXIES: SEYFERThttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 active galactic nuclei and the N2 = log([N II]λ6584/H a) emission-line intensity ratio. This calibration was derived through the [OIII]λ5007/[O II]λ3727 versus N2 diagram containing observational data and photoionization model results obtained with the CLOUDY code. The observational sample consists of 463 confirmed Seyfert 2 nuclei (redshift z ≤ 0.4) taken from the Sloan Digital Sky Survey DR7 data set. The obtained Z-N2 relation is valid for the range 0.3 ≤ (Z/Z⊙) ≤ 2.0 that corresponds to -0.7 ≤ (N2) ≤ 0.6. The effects of varying the ionization parameter (U), electron density and the slope of the spectral energy distribution on the Z estimations are of the order of the uncertainty produced by the error measurements of N2. This result indicates the large reliability of our Z -N2 calibration. A relation between U and the [OIII]/[O II] line ratio, almost independent of other nebular parameter, was obtained.Fil: Carvalho, S.P.. Universidade Do Vale Do Paraiba; BrasilFil: Dors, O. L.. Universidade Do Vale Do Paraiba; 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: Krabbe, Nora Cristina. Universidade Do Vale Do Paraiba; BrasilFil: Pérez Montero, E.. Instituto de Astrofísica de Andalucía; EspañaFil: Monteiro, A.F.. Universidade Do Vale Do Paraiba; BrasilFil: Armah, M.. Universidade Do Vale Do Paraiba; BrasilFil: Freitas Lemes, P.. Universidade Do Vale Do Paraiba; BrasilWiley Blackwell Publishing, Inc2020-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/144111Carvalho, S.P.; Dors, O. L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Nora Cristina; et al.; Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 492; 4; 6-2020; 5675-56830035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/MNRAS/STAA193info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/492/4/5675/5721533?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:37Zoai:ri.conicet.gov.ar:11336/144111instacron: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:34982025-09-29 09:40:37.832CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
title Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
spellingShingle Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
Carvalho, S.P.
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
title_short Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
title_full Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
title_fullStr Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
title_full_unstemmed Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
title_sort Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS
dc.creator.none.fl_str_mv Carvalho, S.P.
Dors, O. L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Krabbe, Nora Cristina
Pérez Montero, E.
Monteiro, A.F.
Armah, M.
Freitas Lemes, P.
author Carvalho, S.P.
author_facet Carvalho, S.P.
Dors, O. L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Krabbe, Nora Cristina
Pérez Montero, E.
Monteiro, A.F.
Armah, M.
Freitas Lemes, P.
author_role author
author2 Dors, O. L.
Cardaci, Monica Viviana
Hägele, Guillermo Federico
Krabbe, Nora Cristina
Pérez Montero, E.
Monteiro, A.F.
Armah, M.
Freitas Lemes, P.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
topic GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: ISM
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 present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 active galactic nuclei and the N2 = log([N II]λ6584/H a) emission-line intensity ratio. This calibration was derived through the [OIII]λ5007/[O II]λ3727 versus N2 diagram containing observational data and photoionization model results obtained with the CLOUDY code. The observational sample consists of 463 confirmed Seyfert 2 nuclei (redshift z ≤ 0.4) taken from the Sloan Digital Sky Survey DR7 data set. The obtained Z-N2 relation is valid for the range 0.3 ≤ (Z/Z⊙) ≤ 2.0 that corresponds to -0.7 ≤ (N2) ≤ 0.6. The effects of varying the ionization parameter (U), electron density and the slope of the spectral energy distribution on the Z estimations are of the order of the uncertainty produced by the error measurements of N2. This result indicates the large reliability of our Z -N2 calibration. A relation between U and the [OIII]/[O II] line ratio, almost independent of other nebular parameter, was obtained.
Fil: Carvalho, S.P.. Universidade Do Vale Do Paraiba; Brasil
Fil: Dors, O. L.. Universidade Do Vale Do Paraiba; 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: Krabbe, Nora Cristina. Universidade Do Vale Do Paraiba; Brasil
Fil: Pérez Montero, E.. Instituto de Astrofísica de Andalucía; España
Fil: Monteiro, A.F.. Universidade Do Vale Do Paraiba; Brasil
Fil: Armah, M.. Universidade Do Vale Do Paraiba; Brasil
Fil: Freitas Lemes, P.. Universidade Do Vale Do Paraiba; Brasil
description We present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 active galactic nuclei and the N2 = log([N II]λ6584/H a) emission-line intensity ratio. This calibration was derived through the [OIII]λ5007/[O II]λ3727 versus N2 diagram containing observational data and photoionization model results obtained with the CLOUDY code. The observational sample consists of 463 confirmed Seyfert 2 nuclei (redshift z ≤ 0.4) taken from the Sloan Digital Sky Survey DR7 data set. The obtained Z-N2 relation is valid for the range 0.3 ≤ (Z/Z⊙) ≤ 2.0 that corresponds to -0.7 ≤ (N2) ≤ 0.6. The effects of varying the ionization parameter (U), electron density and the slope of the spectral energy distribution on the Z estimations are of the order of the uncertainty produced by the error measurements of N2. This result indicates the large reliability of our Z -N2 calibration. A relation between U and the [OIII]/[O II] line ratio, almost independent of other nebular parameter, was obtained.
publishDate 2020
dc.date.none.fl_str_mv 2020-06
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/11336/144111
Carvalho, S.P.; Dors, O. L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Nora Cristina; et al.; Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 492; 4; 6-2020; 5675-5683
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/144111
identifier_str_mv Carvalho, S.P.; Dors, O. L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Nora Cristina; et al.; Chemical abundances of Seyfert 2 AGNs, II: N2 metallicity calibration based on SDSS; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 492; 4; 6-2020; 5675-5683
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/doi/10.1093/MNRAS/STAA193
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/492/4/5675/5721533?redirectedFrom=fulltext
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
_version_ 1844613285170642944
score 13.070432

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