Free Access
Fig. 4
Background-subtracted EPIC surface-brightness profile in elliptical annuli starting from the tip in the NE direction (position angles 105–165). The sky background intensity was estimated in the pink circle in Fig. 1. The NXB level is shown by the blue line.
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.