Diagram of peaks appearing in the GLS periodograms of the activity indicators accessible with CARMENES for G 268−110. For each activity indicator, the GLS periodogram was created and the ten highest-occurring peaks determined. If the FAP of the GLS peak is below 80 %, it is written to a table. This list of peaks is used to run a DBSCAN clustering algorithm. A cluster is a group of peaks with at least 3 members, where the distance to the nearest neighbor is less than the resolution of the GLS.