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We used the CLUMPY torus models and a Bayesian approach to fit the infraredspectral energy distributions (SEDs) and ground-based high-angular resolutionmid-infrared spectroscopy of 13 nearby Seyfert galaxies. This allowed us to puttight constraints on torus model parameters such as the viewing angle, theradial thickness of the torus Y, the angular size of the cloud distributionsigma_torus, and the average number of clouds along radial equatorial rays N_0.The viewing angle is not the only parameter controlling the classification of agalaxy into a type 1 or a type 2. In principle type 2s could be viewed at anyviewing angle as long as there is one cloud along the line of sight. A morerelevant quantity for clumpy media is the probability for an AGN photon toescape unabsorbed. In our sample, type 1s have relatively high escapeprobabilities, while in type 2s, as expected, tend to be low. Our fits alsoconfirmed that the tori of Seyfert galaxies are compact with torus model radiiin the range 1-6pc. The scaling of the models to the data also provided the AGNbolometric luminosities, which were found to be in good agreement withestimates from the literature. When we combined our sample of Seyfert galaxieswith a sample of PG quasars from the literature to span a range ofL_bol(AGN)~10^{43}-10^{47}erg/s, we found plausible evidence of the recedingtorus. That is, there is a tendency for the torus geometrical covering factorto be lower at high AGN luminosities than at low AGN luminosities. This isbecause at low AGN luminosities the tori appear to have wider angular sizes andmore clouds along radial equatorial rays. We cannot, however rule out thepossibility that this is due to contamination by extended dust structures notassociated with the dusty torus at low AGN luminosities, since most of these inour sample are hosted in highly inclined galaxies. (Abridged)

Torus and AGN properties of nearby Seyfert galaxies: Results from fitting IR spectral energy distributions and spectroscopy