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Fig. 6
Correlations in the temporal variability of the first moment (centroid) of 13 diagnostic lines in HD 2905. The Si III λ4552 line is used as baseline (x-axis) and all measurements are referred to the value of ⟨v⟩ (per individual line) corresponding to the first spectrum in the HERMES-2 dataset (see also Table 1 and Fig. 7).
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