Free Access
Fig. 4

Estimated top-hat filter function with ℓmin = 200 and ℓmax = 400, from nmax COSEBIs filters defined on 1′<ϑ< 400′. The changes between using 40 and 80 COSEBIs filters are small, so that no better representation is obtained by using an even higher value of nmax.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.