Toward more accurate RR Lyrae metallicities | Astronomy & Astrophysics (A&A)

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Volume 678 (October 2023)

A&A, 678 (2023) A138

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Table 1

HDS inventory.

Source	N_obj	N_sp	DZP	RMS	N_clip
ta22	21	31	−0.1053	0.0596	0
cr21	121	184	−0.0511	0.0808	2
la96	15	15	0.0572	0.0466	0
li13	22	33	−0.1654	0.0497	0
ch17	28	70	−0.1383	0.0998	0
c195	10	10	−0.0471	0.0966	0
fo11	11	165	−0.0601	0.0193	0
ne13	24	24	−0.1376	0.1175	0
lam5	119	216	−0.0984	0.0798	0
la15	81	133	−0.0395	0.0761	1
gala	22	22	−0.1629	0.0893	0
an18	26	51	−0.0852	0.0882	0
pa15	18	54	−0.1378	0.1077	0
an21	7	7	−0.1769	0.0838	0
fe96	9	9	0.0942	0.1085	0
fe97	38	38	−0.0808	0.1495	1
so97	23	47	−0.1349	0.1235	2

Total:	269	1109	–	–	6

Notes. N_obj = number of objects; N_sp = number of spectra; DZP= zero point shift for [Fe/H] (including differential and global shifts – see Sect. 2); RMS= standard deviation of the final metallicities for the residuals between the source items and the averages of the values obtained from all sources with multiple spectra; N_clip = Number of 3σ-clipped objects.

References. ta22=Takeda (2022); cr21=Crestani et al. (2021); la96=Lambert et al. (1996); li13=Liu et al. (2013); ch17=Chadid et al. (2017); cl95=Clementini et al. (1995); fo11=For et al. (2011); ne13=Nemec et al. (2013); lam5=Xiang et al. (2019); lal5=Luo et al. (in prep.); gala=Buder et al. (2021); an18=Andrievsky et al. (2018); pa15=Pancino et al. (2015); an21=Andrievsky et al. (2021); fe96=Fernley & Barnes (1996); fe97=Fernley & Barnes (1997); so97=Solano et al. (1997).

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