Conveners
Dust in AGN: Dust in AGN
- Daniel Asmus (ESO, Chile / University of Southampton, UK)
Dust in AGN: Dust in AGN
- Daniel Asmus (ESO)
In this talk I will review our current knowledge of the torus of dust and molecular gas in AGN and its close surroundings. I will summarize recent results on the geometry of the torus in nearby AGN, the connection to inflows and outflows, and the properties of AGN dust. In the last part of the talk I will touch upon the properties of the torus in distant AGN and in particular the dust covering...
Dust accreting onto supermassive black holes has been a cornerstone of AGN unification as it provides the angle dependent obscuration required to explain the various AGN types by a pure view angle effect. However, advancements in angular resolution over the last decade have allowed us to resolve the dust-emitting region for the first time. It is now clear that dust plays a fundamental role in...
Recent observations have suggested the existence of a large amount of dust around supermassive black holes (SMBHs) in the early universe (e.g. Maiolino et al. 2004). In dusty clouds, the growth of black holes can be significantly regulated due to strong radiation force on dust grains. Yajima et al. (2017) recently showed that the accretion on to intermediate-mass black holes (IMBHs) in dusty...
Parsec-scale polar emission signatures seen in the infrared continuum of many nearby AGN suggest the presence of dust in a region generally associated with outflowing gas. This makes clear that the idea of a circum-nuclear obscurer referred as torus needs to be revised in favour of a more complex obscuring structure, yielding a polar component. We present a semi analytical model to test the...
