Oxygen abundances in the narrow line regions of Seyfert galaxies and the metallicity–luminosity relation
dc.contributor.author | Armah, Mark | pt_BR |
dc.contributor.author | Riffel, Rogério | pt_BR |
dc.contributor.author | Dors Júnior, Oli Luiz | pt_BR |
dc.contributor.author | Oh, Kyuseok | pt_BR |
dc.contributor.author | Koss, Michael | pt_BR |
dc.contributor.author | Ricci, Claudio | pt_BR |
dc.contributor.author | Trakhtenbrot, Benny | pt_BR |
dc.contributor.author | Valerdi, Mabel | pt_BR |
dc.contributor.author | Riffel, Rogemar André | pt_BR |
dc.contributor.author | Krabbe, Angela Cristina | pt_BR |
dc.date.accessioned | 2023-07-19T03:38:04Z | pt_BR |
dc.date.issued | 2023 | pt_BR |
dc.identifier.issn | 0035-8711 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/262323 | pt_BR |
dc.description.abstract | We present oxygen abundances relative to hydrogen (O/H) in the narrow line regions (NLRs) gas phases of Seyferts 1 (Sy 1s) and Seyferts 2 (Sy 2s) active galactic nuclei (AGNs). We used fluxes of the optical narrow emission line intensities [3 500 < λ(Å) < 7 000] of 561 Seyfert nuclei in the local Universe ( z 0.31) from the second catalogue and data release (DR2) of the BAT AGN Spectroscopic Survey, which focuses on the Swift-BAT hard X-ray ( 10 keV) detected AGNs. We derived O/H from relative intensities of the emission lines via the strong-line methods. We find that the AGN O/H abundances are related to their hosts stellar masses and that they follow a downward redshift evolution. The derived O/H together with the hard X-ray luminosity (LX) were used to study the X-ray luminosity–metallicity (LX–ZNLR) relation for the first time in Seyfert galaxies. In contrast to the broad-line focused (LX–ZBLR) studies, we find that the LX–ZNLR exhibit significant anticorrelations with the Eddington ratio (λEdd) and these correlations vary with redshifts. This result indicates that the low-luminous AGNs are more actively undergoing interstellar medium enrichment through star formation in comparison with the more luminous X-ray sources. Our results suggest that the AGN is somehow driving the galaxy chemical enrichment, as a result of the inflow of pristine gas that is diluting the metal rich gas, together with a recent cessation on the circumnuclear star-formation. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Monthly notices of the royal astronomical society. Oxford. Vol. 520, no. 2 (Apr. 2023), p. 1687-1703 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Galáxias ativas | pt_BR |
dc.subject | Galaxies : abundances | en |
dc.subject | Evolucao galatica | pt_BR |
dc.subject | Galaxies : active | en |
dc.subject | Galaxies : evolution | en |
dc.subject | Formacao de galaxias | pt_BR |
dc.subject | Galaxies : formation | en |
dc.subject | Meio interestelar | pt_BR |
dc.subject | Galaxies : ISM | en |
dc.subject | Galaxias seyfert | pt_BR |
dc.subject | Galaxies : Seyfert | en |
dc.title | Oxygen abundances in the narrow line regions of Seyfert galaxies and the metallicity–luminosity relation | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001167065 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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