Free Access
Fig. 10.

Dependence of HβBC + BLUE centroids c(0.10), c(0.25) and c(0.50) on Eddington ratio (top row), luminosity at 5100 Å (second row from top), and the 4DE1 parameters RFeII and FWHM(Hβ) (third and fourth rows, respectively). We note that almost all objects with HβBLUE are Pop. A sources. Meaning of symbols is as in Fig. 1.
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.