Fig. 1.
Distributions of the NEWRs of the elements Si and Fe as a function of their EW for the five standard stars before (left) and after (right) the calibration. The standard stars are indicated by different colors (from top to bottom): the Sun (yellow), Arcturus (red), Procyon (blue), ϵ Vi (green), and ϵ Eri (purple). The triangles represent lines for which NEWR is larger than +0.4 or smaller than −0.4. In each panel the mean and the Pearson correlation parameter r are shown.
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