Bibcode
Hatziminaoglou, E.; Fritz, J.; Pérez-Fournon, I.; Franceschini, A.; Hernán-Caballero, A.; Afonso-Luis, A.; Lonsdale, C.; Fang, F.; Oliver, S.; Rowan-Robinson, M.; Shupe, D.; Smith, H.; Surace, J.; González-Solares, E.
Referencia bibliográfica
The Second Annual Spitzer Science Center Conference: Infrared Diagnostics of Galaxy Evolution. ASP Conference Series, Vol. 381, proceedings of the conference held 14-16 November, 2005 in Pasadena, California, USA. Edited by Ranga-Ram Chary, Harry I. Teplitz and Kartik Sheth. San Francisco: Astronomical Society of the Pacific, 2008., p.413
Advertised on:
3
2008
Número de citas
1
Número de citas referidas
0
Descripción
This work focuses on the properties of dusty tori in active galactic
nuclei (AGN) derived from the comparison of SDSS type 1 quasars with
mid-Infrared (MIR) counterparts and a new, detailed torus model. The
infrared data were taken by the Spitzer Wide-area InfraRed Extragalactic
(SWIRE) Survey. Basic model parameters are constraint, such as the
density law of the graphite and silicate grains, the torus size and its
opening angle. A whole variety of optical depths is supported. The
favored models are those with decreasing density with distance from the
center, while there is no clear tendency as to the covering factor, i.e.
small, medium and large covering factors are almost equally distributed.
Based on the models that better describe the observed SEDs, properties
such as the accretion luminosity, the mass of dust, the inner to outer
radius ratio and the hydrogen column density are computed.