Flares on bright stars. The panels show light curves of all sources with over 100 counts and flares (21, 67, 118, 149, 152, 227, 251, 281, 398, and 404). All are cluster members. Sources 149 and 251 are among the hardest X‐ray sources, and source 251 is a possible embedded massive star. Source 118 is also deeply embedded (see text). Histogram bins traced with a solid line are to guide the eye (bin sizes were selected to yield an average of 10 counts per bin). Blocks of constant flux (99% confidence according to Bayesian statistics) are traced by the dashed lines.