Orientation and Unified Models
•“Unified
Models” explain some of the different classes of AGN, particularly type 1 and type 2 Seyferts,
via orientation.
•For
specifics, see the Annual Reviews article by Antonucci, 1993, a “bishop” in the “Church of
Unification.”
•Another nice website: http://www.mssl.ucl.ac.uk/www_astro/agn/agn_unified.html
From Horizons by Seeds
As
we have discussed, inner AGN structure believed to
feature a black hole fed by an accretion disk. Jets may emerge along the spin
axis, and the disk illuminates BLR and NLR
clouds. A dense molecular torus
exists on larger scales and can obscure the central
engine from certain lines of sight.