Systematic differences in the spectroscopic analysis of red giants

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Volume 622 (February 2019)

A&A, 622 (2019) A111

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Table 2.

Atmospheric parameters and abundances with only internal uncertainties from spectroscopy with DAOSPEC + C14.

Target	T_eff (K)	log g	v_mic (km s⁻¹)	[Fe/H]	n^a	[α/Fe]
NGC 6819-KIC5024327	4695 ± 18	2.52 ± 0.05	1.19 ± 0.05	−0.02 ± 0.01	97/12	−0.02 ± 0.02
M67-EPIC211415732	4680 ± 18	2.43 ± 0.04	1.21 ± 0.05	−0.03 ± 0.01	97/12	0.03 ± 0.02
NGC 188-5085	4580 ± 23	2.51 ± 0.06	1.17 ± 0.06	0.04 ± 0.01	95/12	0.00 ± 0.02

Notes. The analysis presented shows that in a different setup, differences could be up toward ~ 170 K for T_eff, ~ 0.4 dex for log g, and ~ 0.25 dex for the metallicity, which should be kept in mind when comparing to other results. ^(a) Number of FeI/FeII lines used.

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