Open Access
Fig. 34.

Download original image
Distribution of the literature redshift from the Milliquas 7.2 catalogue (Flesch 2021) and Gaia G-band magnitudes for the 42 944 sources used in the computation of the composite quasar spectra in Fig. 33.
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.