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Fig. 8.


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Histograms of coefficient amplitudes. A wavelet coefficient amplitude corresponds to the coefficient computed in Eq. (30). Background corresponds to the coefficient of samples where we did not add any cluster. The background coefficients follow a Gaussian distribution, and we can thus define a standard deviation σ for detection. We can see that the lower the cluster mass, and thus the lower the S/N, the closer the histograms are to the background.

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