Detection fidelity as a function of signal-to-noise ratio. The fidelity is expressed as 1 − N_neg/N_pos, where N_negis the numbers of the sources detected in the datacubes multiplied by −1 and N_pos in the number of the detections in the original datacubes, when we apply the list of detection criteria described in the text. The red stars and line correspond to the detections in the “mosaic”, while the other lines correspond to the individual pointings, magenta for P1, blue for P2, cyan for P3, and green for P4. The signal-to-noise ratio in the x-axis correspond to the ratio between the isophotal flux and its error as provided by CubEx. The shapes of the lines reflect the uncertainty in the fidelity measurement.