Extended Data Fig. 4: Observation-averaged QPE time evolution.
From: Nine-hour X-ray quasi-periodic eruptions from a low-mass black hole galactic nucleus
a–c, Time-evolution of the QPE amplitude A (a), duration Tdur (b) and recurrence time Trec (c) since first QPE detection in XMM3. All quantities are averaged over each X-ray observation. d, e, Trec (d) and the duty cycle Δ (e) as a function of the QPE amplitude A. Errors bars represent the 1σ confidence intervals. Some error bars are smaller than the symbol size.