Gas-phase metallicity determinations in nearby AGNs with SDSS-IV MaNGA: evidence of metal-poor accretion

We derive the metallicity (traced by the O/H abundance) of the narrow-line region (NLR) of 108 Seyfert galaxies as well as radial metallicity gradients along their galaxy discs and of these of a matched control sample of no active galaxies. In view of that, observational data from the SDSS-IV MaNGA...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2022-03, Vol.513 (1)
Hauptverfasser:	do Nascimento, Janaína C., Dors, Oli L., Storchi-Bergmann, Thaisa, Mallmann, Nícolas D., Riffel, Rogério, Ilha, Gabriele S., Riffel, Rogemar A., Rembold, Sandro B., Deconto-Machado, Alice, da Costa, Luiz N., Armah, Mark
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy & Astrophysics
Online-Zugang:	Volltext
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