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Fig. 11

image

Comparison of the power spectra of γ Psc from the single instruments. The top panels show the original and the smoothed signal in the PDS for individual data sets. Two PDS are shown in the case of Hermes: the full data set was used for the red PDS and the set corrected for the radial velocity jump at 445 days (Fig. 2) was used for the black PDS. The estimate of νmax as the highest point of the smoothed PDS is marked as a dotted vertical line for each individual data set. The bottom panel shows the PDS of the combined data set, divided into two halves. The first and second half of the data set are shown as grey and black lines. The red line shows the power spectrum of the RV-subset with the best coverage (440 <t< 465 days in Fig. 2).

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