Free Access

Fig. 11.

image

Radio map produced at the end of the direction-dependent calibration process. The rms noise is between 1.3 and 1.5 mJy beam−1, depending on the image region, at a resolution of 18″ × 11″. Red lines show the separation between facets and the red dots indicate the flux-weighted mean location of the sources used as direction-dependent calibrators. If a border between two facets crosses a source (as it happened for the primary target), the facet edge is modified so that each source is fully enclosed within one single facet. This is shown in the smaller panel where colour-coded there are the effective masks used to identify facets. We note that the border that goes over the extended emission of the Toothbrush cluster is not straight, so that the cluster is fully included in the left region.

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.