Open Access
Fig. 2

Mask showing the 552 circular sky patches (gray spots) considered in the present analysis. We masked the sky for Galactic latitudes |b| < 5° and |b| > 60°. The black area is masked. A Galactic coordinates grid centered in (l, b) = (0°, 0°) is added with steps of 30° both in longitude and in latitude.
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.