Fig. 7
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ℓ1 periodogram of the ESPRESSO (left) and the combined NIRPS+HARPS datasets (right), computed on a grid of frequencies from 0 to 1 cycle per day. The total time span of the ESPRESSO and NIRPS/HARPS observations is ~72 and ~204 days, respectively. Each periodogram highlights in orange the significant peaks (with ∆ In 𝒵 > 10, where 𝒵 is the Bayesian evidence).
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