Fig. 4

Comparison of the ROSAT cluster catalog (REFLEX+NORAS; black) and EPCC differential redshift distributions, shown for different values of σ8. The solid lines are derived using the Jenkins et al. (2001) mass function while the dashed lines correspond to the Tinker et al. (2008) mass function. The EPCC is expected to significantly extend the depth of all-sky cluster surveys.
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