Fig. A.1

Two examples showing the determination of the disk effective radius. The gray shadow defines the region where the bulge contributes to the total surface brightness. This is excluded from the fit, which is performed to the disk profile (solid blue line). The red vertical dotted line corresponds to the disk effective radius, re, obtained from the Sérsic profile expression.
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.