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Table 4

Difference between the parameters derived from the two methods and the reference values (neutral iron abundance is used as a proxy for metallicity).

Reference Synthetic spectral fitting Equivalent width
T eff log (g) [Fe 1/H] ΔTeff Δlog (g) Δ[M/H] ΔTeff Δlog (g) Δ[M/H]
Star LTE μ σ μ σ μ σ μ σ μ σ μ σ
18 Sco 5810 4.44 0.01 19 15 −0.06 0.03 0.03 0.01 −19 4 −0.04 0.03 0.03 0.01
Arcturus 4286 1.64 −0.53 −179 8 −0.19 0.10 −0.11 0.02 −126 50 0.07 0.14 −0.13 0.04
HD 107328 4496 2.09 −0.34 −218 3 −0.37 0.01 −0.18 0.01 −253 10 −0.28 0.01 −0.24 0.01
HD 122563 4587 1.61 −2.74 −163 77 −0.61 0.32 0.00 0.05 434 30 0.61 0.13 0.57 0.04
HD 140283 5514 3.57 −2.43 329 22 0.33 0.32 0.08 0.03 664 37 0.79 0.11 0.53 0.02
HD 220009 4275 1.47 −0.75 −147 7 0.14 0.03 0.01 0.00 −10 41 0.56 0.13 0.04 0.03
HD 22879 5868 4.27 −0.88 −1 1 0.13 0.02 0.16 0.00 −69 38 0.20 0.09 0.09 0.02
HD 84937 6356 4.15 −2.09 −23 33 −0.05 0.06 0.17 0.04 291 76 0.55 0.09 0.46 0.08
Procyon 6554 3.99 −0.04 22 18 −0.20 0.02 −0.06 0.01 −35 75 0.24 0.17 0.00 0.01
Sun 5777 4.44 0.02 23 15 −0.06 0.02 −0.02 0.05 −4 25 −0.03 0.04 −0.01 0.03
α Cen A 5792 4.30 0.24 −24 13 −0.13 0.01 −0.05 0.01 6 10 0.02 0.01 −0.04 0.00
α Cet 3796 0.68 −0.45 −50 11 −0.01 0.04 0.22 0.01 317 36 1.02 0.25 0.24 0.02
α Tau 3927 1.11 −0.37 −120 2 −0.20 0.10 0.10 0.00 347 75 0.70 0.71 0.23 0.21
β Hyi 5873 3.98 −0.07 −25 9 −0.08 0.01 −0.06 0.01 26 9 0.13 0.01 0.00 0.01
β Vir 6083 4.10 0.21 32 10 −0.08 0.01 −0.11 0.01 113 25 0.13 0.07 −0.02 0.01
δ Eri 4954 3.75 0.06 16 9 −0.18 0.02 −0.01 0.01 284 30 0.20 0.12 0.08 0.04
ϵ Eri 5076 4.60 −0.10 −13 16 −0.01 0.02 0.00 0.00 292 170 −0.29 0.18 0.02 0.00
ϵ Vir 4983 2.77 0.13 111 0 −0.02 0.02 −0.05 0.00 262 21 0.69 0.07 0.04 0.02
η Boo 6099 3.80 0.30 −103 20 −0.12 0.02 −0.15 0.00 54 7 0.31 0.04 0.10 0.01
μ Ara 5902 4.30 0.33 −196 11 −0.21 0.01 −0.09 0.00 −170 14 −0.10 0.03 −0.08 0.01
τ Cet 5414 4.49 −0.50 −156 10 −0.08 0.03 0.05 0.01 −95 8 −0.28 0.03 0.04 0.02
61 Cyg A 4374 4.63 −0.33 −72 −0.35 0.11 344 0.00 0.09
61 Cyg B 4044 4.67 −0.38 −57 −0.33 0.17 135 −1.28 −0.36
Gmb 1830 4827 4.60 −1.46 170 0.18 0.22 383 0.40 0.36
HD 49933 6635 4.20 −0.46 −89 −0.32 −0.05 −39 0.24 0.14
α Cen B 5231 4.53 0.22 −114 −0.20 −0.03 −64 −0.24 −0.06
β Ara 4173 1.04 −0.05 210 −0.06 −0.06 51 −1.04 1.37
β Gem 4858 2.90 0.12 −9 −0.15 −0.09 −57 −0.24 −0.14
ϵ For 5123 3.52 −0.62 −157 −0.02 0.07 −43 0.04 0.09
γ Sge 3807 1.05 −0.16 106 0.00 0.04 233 1.08 0.36
ξ Hya 5044 2.87 0.14 3 −0.07 −0.11 156 0.50 −0.01
μ Cas 5308 4.41 −0.82 −64 0.03 0.09 173 0.04 0.16
μ Leo 4474 2.51 0.26 −16 −0.26 −0.03 157 −0.49 −0.26
ψ Phe 3472 0.51 −1.23 83 −0.35 0.92 941 0.30 0.65

Notes. For stars with several observed spectra, the difference corresponds to the average, and the standard deviation is also reported.

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