Free Access
Fig. 5.
Download original image
Median stacked LOFAR cutouts of the known quasars divided into four redshift bins. The median peak flux density and error for each stack is given in the bottom right. There is a significant radio detection (> 5σ) in the three lowest redshift bins, but there is no significant detection in the 6.5 < z < 7 bin.
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.