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Fig. 1
Luminosity-redshift plot of the REFLEX II cluster catalogue. The limiting flux is 1.8 × 10-12 erg/s/cm2 in the 0.1–2.4 keV ROSAT band. The blue filled circles are the 19 clusters in the REFLEX II catalogue, and the 3 open circles below the flux limit are the clusters in the REFLEX III supplementary catalogue with z > 0.2.
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