Fig. 21.
Source counts as a function of transient durations (left panel) and detection likelihoods (right panel) in all active instruments and in the 0.2–12 keV energy band (corresponding to band 0 for the transients and band 8 in the 3XMM-DR5 catalogue). Red points indicate the 136 transient sources in the EXTraS catalogue. In the right panel, yellow points represent all transient candidates before selection and screening, black points are all 3XMM-DR5 sources, and green points their subsample with EP_EXTENT = 0, DET_ML > 15 and SUM_FLAG = 0.
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