Fig. 12.
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Absorption equivalent widths for the full G-band region, its central core, and nearby Fe I lines, as function of the Ca II H & K S-index. The different seasons of 2016, 2017, and 2018 are marked in red, cyan, and gray. Also, the corresponding radial velocity variations for the full spectrum are shown. For cases with apparent systematic dependences, dotted blue lines show fitted relations.
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