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dc.contributor.author
Armah, Mark
dc.contributor.author
Dors, Oli L.
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Aydar, C. P.
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Cardaci, Monica Viviana
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Hägele, Guillermo Federico
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Feltre, Anna
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Riffel, R.
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Riffel, R. A.
dc.contributor.author
Krabbe, A. C.
dc.date.available
2022-02-22T13:34:03Z
dc.date.issued
2021-11
dc.identifier.citation
Armah, Mark; Dors, Oli L.; Aydar, C. P.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; et al.; Chemical abundances in Seyfert galaxies, VII : direct abundance determination of neon based on optical and infrared emission lines; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 508; 1; 11-2021; 371-391
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/152463
dc.description.abstract
For the first time, neon abundance has been derived in the narrow line region from a sample of Seyfert 2 nuclei. In view of this, we compiled from the literature fluxes of optical and infrared (IR) narrow emission lines for 35 Seyfert 2 nuclei in the local universe (z <∼ 0.06). The relative intensities of emission lines were used to derive the ionic and total neon and oxygen abundances through electron temperature estima- tions (Te-method). For the neon, abundance estimates were obtained by using both Te-method and IR-method. Based on photoionization model results, we found a lower electron temperature [te(Ne iii)] for the gas phase where the Ne2+ is located in compar- ison with t3 for the O2+ ion. We find that the differences (D) between Ne2+/H+ ionic abundances calculated from IR-method and Te−method (assuming t3 in the Ne2+/H+ derivation) are similar to the derivations in star-forming regions (SFs) and they are reduced by a mean factor of ∼ 3 when te(Neiii) is considered. We propose a semi- empirical Ionization Correction Factor (ICF) for the neon, based on [Neii]12.81μm, [Neiii]15.56μm and oxygen ionic abundance ratios. We find that the average Ne/H abundance for the Seyfert 2s sample is nearly 2 times higher than similar estimate for SFs. Finally, for the very high metallicity regime (i.e. [12 + log(O/H) >∼ 8.80]) an in- crease in Ne/O with O/H is found, which likely indicates secondary stellar production for the neon.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
galaxies: abundances
dc.subject
galaxies: active
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galaxies: evolution
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galaxies: nuclei
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galaxies: Seyfert
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Chemical abundances in Seyfert galaxies, VII : direct abundance determination of neon based on optical and infrared emission lines
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-02-04T13:30:16Z
dc.journal.volume
508
dc.journal.number
1
dc.journal.pagination
371-391
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Armah, Mark. Universidade Do Vale Do Paraíba; Brasil
dc.description.fil
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
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Fil: Aydar, C. P.. Universidade de Sao Paulo; Brasil
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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
dc.description.fil
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
dc.description.fil
Fil: Feltre, Anna. Universidad de Bologna; Italia
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Fil: Riffel, R.. Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Riffel, R. A.. Universidade Federal de Santa Maria; Brasil
dc.description.fil
Fil: Krabbe, A. C.. Universidade Do Vale Do Paraíba; Brasil
dc.journal.title
Monthly Notices of the Royal Astronomical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/508/1/371/6371130
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stab2610
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