GLS periodograms (black) and window functions (gray) for the CARMENES VIS1 and NIR1 RV data sets, as well as for the combined optical (i.e., VIS1, VIS2, HARPS, HT1, and HT2) and near-infrared (i.e., NIR1, NIR2, HPF1, HPF2) instruments, with offsets accounted for. The horizontal lines correspond to FAP levels of 10% (dashed), 1% (dash-dotted), and 0.1% (dotted). These are computed by using the randomization technique for 10 000 samples. The orange solid line corresponds to the rotational period of 2.23 days, whereas the orange dashed line represents the 1.81 d alias signal due to daily sampling.