Left: average activity level (pEW′(Hα)) as a functionof the rotational velocity (vsini) of the 98 stars in the sample, colour-coded with the stellar mass. Stars with activity-related signals (FAP ≤ 10%) in any of the parameters are shown with circles, and stars with no detections with triangles. For the targets with detections, large circles indicate a detection (FAP ≤ 10%) in the BIS. Right: same as the left panel, but for the CRX instead of the BIS.