Free Access

Fig. 1

thumbnail

Central surface brightness in the r′ band as a function of r′ magnitude. The horizontal and oblique full lines isolate the star sequence (below the horizontal line and between the oblique lines). The two vertical lines correspond to r′ = 17.75 where the stars stop being saturated, and r′ = 22, where the fit to calculate the star sequence was limited (see text).

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.