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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 606439.0, MPI für Astronomie / Publikationen_mpia
Hydrodynamic studies of turbulent AGN tori
Authors:Schartmann, M.; Meisenheimer, K.; Klahr, H.; Camenzind, M.; Wolf, S.; Henning, T.; Burkert, A.; Krause, M.
Publisher:EDP Sciences
Date of Publication (YYYY-MM-DD):2011
Title of Proceedings:JENAM 2008: Grand Challenges in Computational Astrophysics
Start Page:69
End Page:72
Volume (in Series):44
Audience:Not Specified
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 (Klahr et al. 1999), 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 join into a dense and very turbulent disk structure. In a post-processing step, we calculate spectral energy distributions and images with the 3D radiative transfer code MC3D Wolf (2003) and compare them to observations. Turbulence in the dense disk component is investigated in a separate project.
Comment of the Author/Creator:Date: 2011, January 1, 2011
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
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