Chemical abundances in Seyfert galaxies – X. Sulphur abundance estimates

ABSTRACT For the first time, the sulphur abundance relative to hydrogen (S/H) in the narrow-line regions of a sample of Seyfert 2 nuclei (Sy 2s) has been derived via direct estimation of the electron temperature. Narrow emission-line intensities from the Sloan Digital Sky Survey (SDSS) Data Release...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2023-05, Vol.521 (2), p.1969-1987
Hauptverfasser:	Dors, Oli L, Valerdi, M, Riffel, R A, Riffel, R, Cardaci, M V, Hägele, G F, Armah, Mark, Revalski, M, Flury, S R, Freitas-Lemes, P, Amôres, E B, Krabbe, A C, Binette, L, Feltre, A, Storchi-Bergmann, T
Format:	Artikel
Sprache:	eng
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Zusammenfassung:	ABSTRACT For the first time, the sulphur abundance relative to hydrogen (S/H) in the narrow-line regions of a sample of Seyfert 2 nuclei (Sy 2s) has been derived via direct estimation of the electron temperature. Narrow emission-line intensities from the Sloan Digital Sky Survey (SDSS) Data Release 17 (DR17) [in the wavelength range 3000 < λ(Å) < 9100] and from the literature for a sample of 45 nearby (z
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/stad635