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Table 1

Our composite X-ray cluster sample.

Catalog Number of clusters Limiting flux (erg   s-1   cm-2)

REFLEX 447 2.1e-12
NORAS 371 1.2e-12
160deg2 221 8.0e-14
400deg2 242 1.4e-13
WARPS1+2 124 8.0e-14
MACS(z > 0.5) 12 7.0e-13

Notes. The third column is the effective flux limit, in the [0.5−2] keV energy band, estimated from our recomputed source parameters.

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