Fig. 6.
Relative variation of the error on σ8 for the three catalogs. The level of precision on the HMF reaches the limit of current knowledge (α → 1) for a Euclid-like catalog (Blue). For the largest catalog (Green), the constraints on the HMF need to be 20% better. This is the result for clusters only; the results for clusters plus Planck 2018 priors are summarized in Table 5.
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