Open Access
Fig. 4.
Download original image
Galactic foreground mask derived from Planck data by Erler et al. (2018; fsky ≈ 0.6). The white part is the masked region, and the blue part is what was used in our analysis. Overplotted is the HEALPix tessellation scheme for Nside = 4.
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.