Free Access

Fig. C.1


The W-term increases for lower elevations of the target field. Using the W-Projection algorithm, the computing time increases with w2. This figure shows the normalized cumulative distribution of the w-coordinate (left panel) for a typical LOFAR observation, and the corresponding normalized cumulative computing time (right panel). We can see that rejecting the  ~5% of the points with w > 104 saves  ~70% of the computing time.

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.