When focusing on data with BJD between 6800 and 7200, we note that the FWHM_CCF increases at about BJD 7050, while at BJD 7000 and 7100 it is closer to the average value (upper panel) and produces the peak at ~100 days in its periodogram. The window function – with power excess at ~60 days (middle panel) – for this subsample shows that our sampling clearly explains that the 40-day peak is an alias of the stronger 100-day peak (bottom panel).