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Fig. 2

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Iron abundances as a function of the pulsation phase, effective temperature, and equivalent width. These are examples of good lines that were kept in our initial line list for HARPS (green circles), FEROS (blue triangle), and STELLA (red stars) spectra of β Dor and ζ Gem. The hatched regions around the dashed lines indicate the 1σ uncertainty around the mean.

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