NVSS (left column) and FIRST (right column) images of three quasars with asymmetric lobes. Contours are increased by a factor of 2; the first contour level corresponds to 1 mJy/beam for NVSS images and 0.5 mJy/beam for FIRST images. Crosses indicate the positions of optical objects.
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.