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Fig. 20

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Cluster luminosity probed as a function of redshift in the D1 (top panel) and D4 (lower panel) fields. The flag  =  5 (open circles) and flag  ≤ 3 (filled circles) extended cluster candidates are shown. Open stars show the point-source confusion cluster candidates. The dashed line shows the X-ray luminosity limit based on the minimum extended X-ray flux detection in the data, whilst the solid line shows the X-ray luminosity limit based on the median X-ray flux limit.

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