Torus models for obscuration in type 2 AGN

Details Torus models for obscuration in type 2 AGN Torus models for obscuration in type 2 AGN

2004-10-15

arxiv.org/abs/astro-ph/0410368v1

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures, contributed paper to Proceedings of the Conference "Growing Black Holes" held in Garching, Germany, June 2

Scientific paper

10.1007/11403913_46

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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