Fig. 4.
KI and KIM selection schemes (Messias et al. 2012). Left panel: KI classification scheme suitable for IR AGN at z ≤ 2.5. Due to the redshift distribution of these VLBI sources only one is excluded from this plot. Right panel: composite 3-colour KIM selection scheme plotted in the IM colour space. Sources are classed as AGN if they satisfy the K criterion ([K]−[4.5] > 0; black circles surrounding the markers) and are located in the IM ‘wedge’.
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.