Free Access
Fig. 1

Top: H I total intensity map and R-band optical image of NGC 6824 with overplotted H I total intensity contours: 7.0, 26, 45, 104 × 1019 atoms cm-2 (left and middle panels respectively) and first-moment map of NGC 6824 (right panel). Bottom: the same for UGC 11919; contours: 5.4, 20, 35, 80 × 1019 atoms cm-2.
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.