Background-subtracted light curves of the transients with zero-duration T₉₀. The main panels show the full observation light curves, with the x-axes set such that 0 s corresponds to the start of the observation. The insets zoom in on the transient events, with x-axes shifted so that the first bin with signal corresponds to 0 s, and the durations of the events are indicated. Counts are binned to 1 s. These events last between ~1 and ~32 s.