GLS periodograms of α Cen B derived from the subset of 459 RVs, also analyzed by Dumusque et al. (2012); Rajpaul et al. (2015). In detail, the periodograms have been computed from the original time series (solid black line), (dashed red line), and (dash-dotted blue line). The plot focuses on the neighborhood of 3.2357 days (highlighted as a vertical gray line), which corresponds to the orbital period of the exoplanet announced by Dumusque et al. (2012) and then disproved by Rajpaul et al. (2015). We note that all the GLS peaks are below the cv thresholds for both of the methods.