Derived extinction towards the hot dust AV vs. observed near-IR colour temperature. The intrinsic temperature T1 is set by the observed colour temperature of presumably unobscured sources (Seyfert 1.0–1.5) and the spread in these observed temperatures translates into an uncertainty of AV of about 3 mag as indicated for several observed colour temperatures. For details of the fit of the near-IR colour temperature we refer to B15, specifically Fig. 6 there.
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.