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Fig. 5

image

Upper panel: Hα index measurements at the time of each RV observation of HD 59686 A. Bottom panel: Hα index measurements as a function of the RVs due to the planetary companion HD 59686 Ab, that is, with the stellar component subtracted from the data. No significant correlation is seen in the data, which corroborates that a giant planet is part of the system.

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