Torus properties in intermediate type AGN

Trabajo presentado al XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society (SEA), celebrado del13 al 15 de julio de 2020.
The geometrical covering factor (f2) of the AGN nuclear absorber, the so-called "dusty torus", is substantially larger in optical type 2 AGN than in type 1 objects. We have investigated whether we observe the same effect for type 1 objects with increasing subtypes, from 1 to 1.9 to shed light onto the physical origin of the intermediate type classification of AGN: partial obscuration or an intrinsically weaker Broad Line Region at low AGN luminosities. Using a sample of 123 type 1 AGN with intermediate classification we have found that type 1.0, 1.2 and 1.5 AGN have similar distributions of f2 while objects classified as 1.8 and 1.9 have f2 values halfway between those of AGN types 1.0/1.2/1.5 and type 2s.