New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei

We obtained new quantitative determinations of the nitrogen abundance and a consistent relation between the nitrogen and oxygen abundances for a sample of Seyfert 2 galaxies located at redshift z < 0.1. We carried out this analysis using the CLOUDY code to build detailed photoionization models. W...

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Autores principales: Dors Jr, Oli L., Arellano Cordova, K. Z., Cardaci, Mónica Viviana, Hägele, Guillermo Federico
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: ISM
Galaxies: nuclei
Galaxies: Seyfert
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124497
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124497
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: ISM
Galaxies: nuclei
Galaxies: Seyfert
spellingShingle Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: ISM
Galaxies: nuclei
Galaxies: Seyfert
Dors Jr, Oli L.
Arellano Cordova, K. Z.
Cardaci, Mónica Viviana
Hägele, Guillermo Federico
New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei
topic_facet Ciencias Astronómicas
Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: ISM
Galaxies: nuclei
Galaxies: Seyfert
description We obtained new quantitative determinations of the nitrogen abundance and a consistent relation between the nitrogen and oxygen abundances for a sample of Seyfert 2 galaxies located at redshift z < 0.1. We carried out this analysis using the CLOUDY code to build detailed photoionization models. We were able to reproduce observed optical narrow emission line intensities for 44 sources compiled from the literature. Our results show that Seyfert 2 nuclei have nitrogen abundances ranging from ∼0.3 to ∼7.5 times the solar value. We derived the relation log (N/H) = 1.05( ± 0.09) × [log (O/H)] − 0.35( ± 0.33). Results for N/O versus O/H abundance ratios derived for Seyfert 2 galaxies are in consonance with those recently derived for a sample of extragalactic disc H II regions with high metallicity.
format Articulo
Articulo
author Dors Jr, Oli L.
Arellano Cordova, K. Z.
Cardaci, Mónica Viviana
Hägele, Guillermo Federico
author_facet Dors Jr, Oli L.
Arellano Cordova, K. Z.
Cardaci, Mónica Viviana
Hägele, Guillermo Federico
author_sort Dors Jr, Oli L.
title New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei
title_short New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei
title_full New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei
title_fullStr New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei
title_full_unstemmed New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei
title_sort new quantitative nitrogen abundance estimations in a sample of seyfert 2 active galactic nuclei
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/124497
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AT cardacimonicaviviana newquantitativenitrogenabundanceestimationsinasampleofseyfert2activegalacticnuclei
AT hageleguillermofederico newquantitativenitrogenabundanceestimationsinasampleofseyfert2activegalacticnuclei
bdutipo_str Repositorios
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