Fig. A.1.
Masks 2 and 3 applied to the extinction-corrected stellar number density maps of the central 86 pc × 20.2 pc of the Galaxy. The masked regions are in white. The differences between both masks are due to the selection of two different values for the density thresholds to mask out regions with low density. Galactic north is up and Galactic east is to the left. The Galactic plane runs horizontally.
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.