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"How to hide a supermassive black hole" A.
Dorodnitsyn (NASA
Goddard Space Flight Center; University of Maryland) Abstract: A
fundamental assumption of the active galactic nuclei (AGN) unification
scheme(s) is that type 1 and type 2 AGNs have similar intrinsic properties.
The basic premise of this approach is that an obscuration via dusty torus is
responsible for the observational dichotomy of AGNs. For
the first time we suggest a model and employ 2.5D full time-dependent
radiation hydrodynamics simulations demonstrating that an obscuration at
parsec scale can be produced by the dense, dusty wind which is supported by
infrared radiation pressure on dust grains. The
results demonstrate that obscuration via infrared-driven winds is a viable
option for the AGN torus problem and AGN unification models. |
