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Fig. 10.

image

Discrimination efficiency with respect to ΛCDM of the MG model f5(R) with mν = 0 eV as a function of statistic, aperture scale, and source redshift. In each plot, the wedges marked by red lines indicate Map filtering by the aperture ϑ appearing at the outer edge. Numbered apertures correspond to angular sizes of (ϑ1, …, ϑ7) = (0.293′, 0.586′, 1.17′, 2.34′, 4.69′, 9.34′, 18.8′). The radial length of a bar, shaded according to source redshift, represents the discrimination efficiency (in percent) of the statistic at the filtering scale associated to its wedge. The variance of this model suffices to distinguish it from ΛCDM at greater than 80% at scales ϑ2 and ϑ3 for sources at zs ≥ 1.5. Peak counts (above a 3σ detection threshold) achieve similar results, while kurtosis proves to be a poor discriminator, not exceeding 55% at any filter scale or redshift. Skewness shows comparably good discrimination power to the variance and peak counts only at scale ϑ2.

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