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Table 2

Atmospheric parameters of the four benchmark stars.

Star T eff ΔTeff log   g Δlog    g [Fe/H] Δ[Fe/H]
[K] [K]

Literature
Arcturus 4302 120 1.68 0.31 −0.53 0.12
HD 23249 5025 255 3.84 0.17 0.07 0.15
Procyon 6583 162 4.06 0.15 −0.01 0.16
Sun 5777 ... 4.44 ... 0 ...

This study
Arcturus 4352 31 1.78 0.12 −0.45 0.13
HD 23249 5108 73 3.82 0.15 0.07 0.15
Procyon 6647 35 3.83 0.08 0.02 0.06
Sun 5755 40 4.30 0.20 0.02 0.09

Notes.For the literature values the numbers are the average values found in PASTEL, and their associated errors are their standard deviations. For this study, the parameters and their errors are given by FAMA.

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