Phase-folded RVs of the ESPRESSO (in red) and PFS (in brown) data in the periods of the HD 23472 system’s five planets are shown in the top panel. The best model is shown in green. The RVs were corrected for systemic velocity, offset between the two instruments, and stellar activity with the fitted GP model. For clarity, we also show the binned RVs and, in addition, the uncertainties of the PFS data are not displayed, but they are slightly larger than the ESPRESSO ones, as mentioned in Sect. 2. The residuals relative to the best-fit model are shown in the bottom panel.