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Radiative transfer simulations of multiphase AGN tori: thermal emission and polarisation
- Source :
- Proceedings of the International Astronomical Union. 10:377-380
- Publication Year :
- 2014
- Publisher :
- Cambridge University Press (CUP), 2014.
-
Abstract
- The unification model of active galactic nuclei postulates an accreting supermassive black hole as the central engine, surrounded by a putative dusty torus. This dust absorbs the incoming radiation, re-emits it in the infrared and obscures our view of the central region at certain inclinations. We present a new set of AGN models, in which the torus is modelled as a 3D multiphase medium. These new models can explain the observed spectral energy distribution of AGNs over the entire infrared domain, including the observed silicate feature strength and the level of near-infrared continuum. A new generation of multi-phase models, based on hydrodynamical simulations, is being constructed. We will compute the polarisation structure of these physically motivated 3D torus models, and compare them to simpler smooth torus models and to the available observational data.
- Subjects :
- Physics
Supermassive black hole
Active galactic nucleus
Infrared
Astrophysics::High Energy Astrophysical Phenomena
Continuum (design consultancy)
Astronomy and Astrophysics
Torus
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Atmospheric radiative transfer codes
Space and Planetary Science
Radiative transfer
Spectral energy distribution
Astrophysics::Earth and Planetary Astrophysics
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 17439221 and 17439213
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Proceedings of the International Astronomical Union
- Accession number :
- edsair.doi...........70267bbcf208e7be2bac326b25f1e790