Free Access

Fig. 4

thumbnail

5 GHz EVN and MERLIN images of NGC 4418 with different relative weighting. In a) the weight of the EVN is increased by a factor of ten with respect to MERLIN. As expected, the features F and G are still prominent, but the features A, B, C, D, E, and H are weaker. In b) the weights of MERLIN data are increased by a factor of ten with respect to the EVN. F and G are now lost in the noise, but we still see A, B, C, D, E, and H. The noise rms increases to 95 μJy/beam for panel a) and 150 μJy/beam for b). For easy comparison the contours in panels a) and b) have been set to the same (−2,2,4,6,8,10,12,14,16) times 90 μJy as in Fig. 2.

This figure is made of several images, please see below:

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.