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Fig. 4.

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Percentage of mock sources that were selected through visual inspection as q ≥ 1.75, in log(Hα)-flux bins. The visual inspection completeness is modeled as a sigmoid function, separately for CONGRESS (left) and FRESCO (right). The vertical dashed line marks the S/N > 5 limit. The resulting sigmoid functions are shown in Eqs. (5) and (6).

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