First panel: GLS periodogram of the UCLAS and HARPS RV residuals following the subtraction of the Doppler reflex motion induced by the outer sub-stellar companion. Second and third panels: GLS periodogram of the BIS and FWHM of the HARPS CCF (data acquired with the old fiber bundle). Fourth panel: periodogram of the window function of the combined RV measurements. The dashed vertical red line marks the orbital frequency of the transiting planet (f_c = 0.16 c/d).