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Fig. 1

image

Top: HD 181234 RV measurements as a function of Julian Date obtained with CORALIE-98 (blue), CORALIE-07 (green), CORALIE-14 (purple) and HIRES data (Butler et al. 2017) in orange. The bestsingle-planet Keplerian model is represented as a black curve. Middle: RV residuals of HD 181234. Bottom: periodogram of the residuals for HD 181234. The three black lines represent the 10, 1, and 0.1% FAPs in ascending order.

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