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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 421472.0, MPI für Astronomie / Publikationen_mpia
Turbulent AGN tori
Authors:Schartmann, M.; Meisenheimer, K.; Klahr, H.; Camenzind, M.; Wolf, S.; Henning, Th
Date of Publication (YYYY-MM-DD):2008
Title of Journal:Memorie della Societa Astronomica Italiana
Start Page:1132
End Page:1135
Review Status:not specified
Audience:Experts Only
Abstract / Description:Recently, the MID-infrared Interferometric instrument (MIDI) at the VLTI has shown that dust tori in the two nearby Seyfert galaxies NGC 1068 and the Circinus galaxy are geometrically thick and can be well described by a thin, warm central disk, surrounded by a colder and fluffy torus component. By carrying out hydrodynamical simulations with the help of the TRAMP code \citep{schartmann_Klahr_99}, we follow the evolution of a young nuclear star cluster in terms of discrete mass-loss and energy injection from stellar processes. This naturally leads to a filamentary large scale torus component, where cold gas is able to flow radially inwards. The filaments open out into a dense and very turbulent disk structure. In a post-processing step, we calculate observable quantities like spectral energy distributions or images with the help of the 3D radiative transfer code MC3D \citep{schartmann_Wolf_03}. Good agreement is found in comparisons with data due to the existence of almost dust-free lines of sight through the large scale component and the large column densities caused by the dense disk.
Free Keywords:Galaxies: nuclei; Galaxies: Seyfert; ISM: dust; extinction; Radiative transfer; Hydrodynamics; ISM: evolution
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2008MmSAI..79.1132S [ID No:1]
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