Application of the YARARA post-processing on the HD 215152 HARPS dataset. First row: comparison of the RV time series extracted with the HARPS DRS (black dots) and after YARARA processing (red dots). Second row: GLS periodogram of the previous time series. The 1% FAP level is indicated as a dotted-dashed line. Exoplanets reported in Delisle(2018) are indicated by black arrows. After YARARA processing, the power at the planetary periods (5.8, 7.3, 10.9 days) are boosted. Third row: RV difference between input and output data. fourth row: GLS periodogram of the RV difference. The removed contaminations were clearly producing most of the signals at one year and its first harmonic.