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Torus models for obscuration in type 2 AGN

Thomas Beckert·Wolfgang J. Duschl·Bernd Vollmer
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Abstract

We discuss a clumpy model of obscuring dusty tori around AGN. Cloud-cloud collisions lead to an effective viscosity and a geometrically thick accretion disk, which has the required properties of a torus. Accretion in the combined gravitational potential of central black hole and stellar cluster generates free energy, which is dissipated in collisions, and maintains the thickness of the torus. A quantitative treatment for the torus in the prototypical Seyfert 2 nucleus of NGC 1068 together with a radiative transfer calculation for NIR re-emission from the torus is presented.

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Thomas Beckert, Wolfgang J. Duschl, Bernd Vollmer. 2004-10-15. Torus models for obscuration in type 2 AGN. https://doi.org/10.1007/11403913_46

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