Fig. A.3.

Comparison of the effect of different masks. Two types of critical points given by DisPerSE are masked: the maxima density points and the bifurcation points. The regions around the critical points with z < 0.4 are masked from 0 to 20 arcmin. Right panel: the signal is decreasing with the size of the masks for short and regular filaments. Left panel: the masks remove the short filaments.
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