Free Access

Fig. 7


Histogram of the redshift distribution of the brightest (J< 20 mag) optically resolved and unresolved Chandra X-ray detected quasars in the COSMOS field, respectively. At redshifts below z ≲ 1 the incompleteness of our parent sample due to morphology is most severe, while at z> 1 the unresolved population of quasars is representative of the full population.

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.