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New Gemini mid-infrared spectroscopic observations together with SpitzerSpace telescope archival data, are used to study the properties of the dustytorus and circumnuclear star formation in the active galaxies NGC 7213 and NGC1386. Our main conclusions can be summarised as follows. Polycyclic aromatichydrocarbon (PAH) emission is absent in the T-ReCS nuclear spectra but isubiquitous in the data from Spitzer at distances above 100 pc. Star formationrates surface densities are estimated from the 12.8 $\mu m$ [Ne{\sc ii}] linestrengths leading to values close to 0.1M$_\odot\,\,{\rm yr}^{-1}\,\,{\rmkpc}^{-2}$. Analogous estimates based on photometric fluxes of IRAC's 8 $\mu m$images are higher by a factor of almost 15, which could be linked to excitationof PAH molecules by older stellar populations. T-ReCS high spatial resolutiondata reveal silicate absorption at $\lambda$ 9.7 $\mu m$ in the central tens ofparsecs of the Seyfert 2 NGC 1386, and silicate emission in the Seyfert 1galaxy NGC 7213. In the case of NGC 1386 this feature is confined to the inner20 pc, implying that the silicate might be linked to the putative dusty torus.Finally, by fitting CLUMPY models to the T-ReCS nuclear spectra we estimate thetorus physical properties for both galaxies, finding line of sight inclinationsconsistent with the AGN unified model.

A Mid-IR comparative analysis of the Seyfert galaxies NGC 7213 and NGC 1386