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Table 4

Determined abundances for HD 140283 with fixed and free Teff, and HD 26297.

HD 140283a: Teff = 5777, log  g = 3.32, HD 140283b: Teff = 5506, log  g = 2.85 HD 26297: Teff = 4458, log  g = 1.06,
Vturb = 1.22, [α/Fe] = 0.26 Vturb= 1.33, [α/Fe]=0.35 Vturb = 1.76, [α/Fe] = 0.36
Number of [Fe/H] or σ Number of [Fe/H] or σ Number of [Fe/H] or σ
features [X/Fe]c features [X/Fe](c) features [X/Fe]c

Fe i 41 –2.64 0.086 41 –2.87 0.041 85 –1.83 0.070
Fe ii 5 –2.64 0.056 5 –2.86 0.062 9 –1.83 0.082
Na i 3 –0.41 0.102
Mg i 1 0.49 1 0.57 1 0.53
Al i 1 –0.06
Si i 6 0.26 0.077
Ca i 6 0.26 0.093 6 0.35 0.044 9 0.28 0.075
Ti i 4 0.40 0.087 4 0.33 0.043 16 0.22 0.097
Ti ii 4 0.28 0.182 4 0.32 0.261 5 0.23 0.356
Ni i 2 0.11 0.243 2 0.11 0.155 10 –0.11 0.101

Notes.

(a)

Effective temperature kept fixed at 5777 K;

(b)

effective temperature determined by MyGIsFOS;

(c)

[X/Fe i] for neutral species, [X/Fe ii] for ionized. σ is line-to-line scatter for Fe, propagated with corresponding σ[ Fe/H ] for [X/Fe].

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