Fig. 1.
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Example signal-to-noise map of aperture masses for a 5 × 5 deg2 sub-patch of one of the Covariance Training Set catalogue (left), and the same map when a threshold of 0.5 is applied (right). The white ‘holes’ in the right map correspond to local maxima of the map and give rise to the topological ‘features’ that are summarised in Dgm1.
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