A new and Homogeneous metallicity scale for Galactic classical Cepheids - II. Abundance of iron and α elements

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Volume 661 (May 2022)

A&A, 661 (2022) A104

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Table 10

Mean abundance differences for stars in common between the current sample of calibrating Cepheids and other datasets.

Abundance ratio	Datasets⁽¹⁾	Zero-point difference	N_Common
[Fe/H]	P18–TS	0.07 ± 0.06	13
[Fe/H]	LII–TS	0.05 ± 0.07	20
[Fe/H]	LIII–TS	0.11 ± 0.08	6
[Fe/H]	LII–LEM	0.07 ± 0.12	55
[Fe/H]	YON–LIII	−0.33 ± 0.15	21
[Mg/H]	LII–TS	−0.14 ± 0.11	16
[Mg/H]	LIII–TS	0.11 ± 0.16	5
[Mg/H]	LII–LEM	−0.26 ± 0.24	35
[Mg/H]	YON–LIII	−0.09 ± 0.14	16
[Si/H]	LII–TS	−0.13 ± 0.07	20
[Si/H]	LIII–TS	−0.01 ± 0.09	6
[Si/H]	LII–LEM	−0.06 ± 0.11	55
[Si/H]	YON–LIII	−0.12 ± 0.07	20
[S/H]	LII–TS	0.11 ± 0.13	17
[S/H]	LII–LEM	−0.13 ± 0.19	45
[Ca/H]	LII–TS	−0.07 ± 0.10	20
[Ca/H]	LIII–TS	−0.01 ± 0.10	6
[Ca/H]	LII–LEM	−0.06 ± 0.17	55
[Ca/H]	YON–LIII	−0.16 ± 0.11	21
[Ti/H]	LII–TS	0.12 ± 0.09	20
[Ti/H]	LIII–TS	0.17 ± 0.12	6
[Ti/H]	YON–LIII	0.33 ± 0.20	20

References. ⁽¹⁾TS: this study; P18: Proxauf et al. (2018); LII: Luck et al. (2011); LIII: Luck & Lambert (2011); LEM: Lemasle et al. (2013); YON: Yong et al. (2006).

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