Periodogram of the radial-velocity data (first panel), of the residuals of the radial velocities after subtraction of the fitted periodic signal (second panel), of the contrast (third panel), of the FWHM (fourth panel), of the bisector inverse span (fifth panel), and of the equivalent width of Hα activity (sixth panel). The red vertical line represents the fitted period in the radial-velocity at 892.7 days. Horizontal lines, from bottom to top, are the FAP levels at 10%, 1%, and 0.1% respectively.