Hypercat - hypercube of AGN tori
نویسندگان
چکیده
منابع مشابه
Penetrating Dust Tori in Agn
We present preliminary results from high resolution (∼ 0.05”) adaptive optics observations of Cygnus A. The images show a bi-conic structure strongly suggestive of an obscuring torus around a quasar nucleus. A bright (K′ = 18.5) point source is found near the expected position of the nucleus. We interpret this source as the hot inner rim of the torus seen through the opening of the torus. Using...
متن کامل3D Radiative Transfer Modeling of Clumpy Dust Tori Around AGN
Abstract. We present 3-dimensional radiative transfer models for clumpy dust tori around AGN. Our method combines Monte Carlo simulations of individual dust clouds with the actual 3-dimensional distribution of clouds in the torus. The model has been applied to NIR and MIR photometric and interferometric observations of NGC 1068. For the first time, it is possible to simultaneously reproduce bot...
متن کاملAGN dust tori: the X-ray-infrared connection
We have combined the well-studied CLASXS Chandra survey in Lockman with the Spitzer SWIRE survey data to study the X-ray-infrared connection for AGN. The sample consists of 401 X-ray-sources, of which 306 are detected by Spitzer, and a further 257 AGN candidates detected through their dust torus, but not by Chandra. We have used spectroscopic redshifts and classifications from the literature, w...
متن کاملAGN dust tori at low and high luminosities
A cornerstone of AGN unification schemes is the presence of an optically and geometrically thick dust torus. It provides the obscuration to explain the difference between type 1 and type 2 AGN. We investigate the influence of the dust distribution on the Eddington limit of the torus. For smooth dust distributions, the Eddingtion limit on the dust alone is 5 orders of magnitudes below the limit ...
متن کاملAGN Obscuring Tori Supported by Infrared Radiation Pressure
Explicit 2-d axisymmetric solutions are found to the hydrostatic equilibrium, energy balance, and photon diffusion equations within obscuring tori around active galactic nuclei. These solutions demonstrate that infrared radiation pressure can support geometrically thick structures in AGN environments subject to certain constraints: the bolometric luminosity must be roughly ∼ 0.03–1× the Eddingt...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2019
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921320002550