Physical Conditions in Obscuring Tori and Molecular Accretion Disks, and Are They Really the Same Thing?
Maloney, Philip R.
Original · EN
The nature of the obscuring material in active galactic nuclei is still uncertain. Although some sources, such as Cygnus A, show evidence for a geometrically thick ``torus'' as originally suggested, recent work on the radiation-driven warping instability discovered by Pringle suggests that obscuration by thin, warped disks may play a crucial role in AGN.
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