Fig. B.1.
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PSD of the data filtered from the stellar speckles estimate of our four epochs. The PSD was lowpass-filtered in order to focus on its low-frequency content. A secondary axis is displayed at the top, which corresponds to an equivalent velocity. A peak is visible around a resolution of 25 000 for each epoch, which corresponds to ∼12 km s−1. This peak is particularly prominent in the data from the last epoch, when the planet was closer to the host star.
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