Fig. 3

Unsharp-masked V band image obtained from optical data acquired at the ESO/MPI 2.2 m telescope with the WFI; North is up, and east to the left. The white bar indicates a 10′′ length. The inner dust lane at the center of NGC 3311 is about 2′′ wide and 7′′ long (Laine et al. 2003), and is embedded within a central light excess of about 16′′ in diameter, where bright knots are visible here and in the HST image of Laine et al. (2003).
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.