Radial velocity data and model fits. The green points represent ELODIE data, and the red empty and filled circles represent SOPHIE and SOPHIE+ data, respectively. The empty black points are Lick Observatory data. In the upper panel of each plot, the solid thick black curve is the maximum a posteriori physical model. The blue curves are the 95% highest density interval (HDI) for the complete model, computed as described in Díaz et al. (2016) and Gregory (2011). The model posterior mean is represented by solid thin grey curve. The stellar drift or systemic velocity is shown as a thick grey line with the 95% (HDI) shown with dotted grey lines.