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Fig. 1.
Properties of the stars in our sample. Top: surface gravity logg vs. effective temperature Teff for stars with [Fe/H] ≤ −0.5 dex (crosses), −0.5 < [Fe/H] < 0.0 dex (open circles), and [Fe/H] ≥ 0.0 dex (solid dots). Bottom: distributions of the stars by spectral type.
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