EAS Publications Series
Volume 44, 2010JENAM 2008: Grand Challenges in Computational Astrophysics
|Page(s)||69 - 72|
|Published online||20 January 2011|
H. Wozniak and G. Hensler (eds)
EAS Publications Series, 44 (2010) 69-72
Hydrodynamic Studies of Turbulent AGN Tori
Max-Planck-Institut f. Astronomie, Königstuhl 17, 69117
2 ZAH, Landessternwarte Heidelberg, Königstuhl 12, 69117 Heidelberg, Germany
3 Christian-Albrechts-Universität zu Kiel, Leibnizstr.15, 24098 Kiel, Germany
4 Universitäts-Sternwarte München, Scheinerstraße 1, 81679 München, Germany
5 Max-Planck-Institut f. Extraterr. Physik, Giessenbachstraße, 85748 Garching, Germany
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.
© EAS, EDP Sciences 2011
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