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11–15 Jun 2018
Geological Museum, University of Copenhagen
Europe/Copenhagen timezone

The AGN torus as a dynamical dusty wind

13 Jun 2018, 14:25
20m
Main Auditorium (Geological Museum, University of Copenhagen)

Main Auditorium

Geological Museum, University of Copenhagen

Øster Voldgade 5 - 7, 1350 København K, Denmark
Board: 49
Poster Dust as a tool Poster Presentations

Speaker

David Williamson (University of Southampton)

Description

High resolution interferometric observations of infrared emission from dust in the immediate environment of AGNs reveal that the warm dust is extended in the polar directions. This suggests a scenario where warm dust is raised above the plane of the AGN through a radiation-pressure driven wind. We have produced a 3D radiation hydrodynamic model including self-gravity effects, and radiation pressure from the central source, with the goal of explaining the features of the dusty wind, as well as the observed emission and obscuration properties. We pre-calculate the heating, cooling, radiation pressure, and sublimation of dust grains for an assumed dust population, and include these effects in the dynamical model. We will present the results of these simulations, commenting on what physical processes are required to accurately model the observations, and examining how our simulations compare to other recent models.

Consider for a poster? Yes

Primary author

David Williamson (University of Southampton)

Co-authors

Dr Sebastian Hönig (University of Southampton) Marta Venanzi

Presentation materials