Fig. 4.

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Correlation plots for the activity proxies computed from the six Neo-Narval observations. From the left: Hα vs. |Bl|, Ca II IRT vs. |Bl|, and Hα vs. Ca II IRT. Each data point is colour-coded based on the rotational cycle as computed from Eq. (1). Each panel displays the Pearson correlation coefficient (ρ) at the top and a linear fit as black dashed line. The green cross indicates the values of the ESPaDOnS snapshot observation, but it was not included in the computation of the Pearson correlation coefficient. We included the first HARPSpol observation in the first panel as a blue cross.
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