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Table 9

Stellar parameters and average Mg  abundances, including line-to-line 1σ dispersions, for the benchmark stars.

Name T eff log g [Fe/H] v mic 1D ⟨ 3D ⟩ 1D


[K] [km s-1] LTE non-LTE LTE non-LTE

Suna 5777 4.44 0.00 1.09 7.57 0.08 7.57 0.08 7.67 0.07 7.66 0.07
Procyonb 6545 3.99 –0.03 2.00 7.47 0.04 7.45 0.04 7.60 0.05 7.56 0.06
Arcturusb 4247 1.59 –0.52 1.63 7.42 0.07 7.33 0.07 7.52 0.10 7.38 0.06
HD 84937a 6408 4.13 –2.03 1.40 5.73 0.04 5.75 0.03 5.78 0.05 5.80 0.03
HD 140283a 5777 3.67 –2.40 1.23 5.36 0.10 5.39 0.10 5.35 0.16 5.45 0.09
HD 122563b 4608 1.61 –2.64 1.50 5.29 0.13 5.26 0.13 5.28 0.08 5.27 0.08

Reference. Model parameters taken from

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