Investigating the physical and geometrical properties of the dusty torus in QSO

Martínez-Paredes, M.;González-Martín, O.;Aretxaga, I.;Alonso-Herrero, A. 2017. Investigating the physical and geometrical properties of the dusty tours in QSO. Revista Mexicana de Astronomia y Astrofisica-Serie de Conferencias, 49.

Usining mid-IR high angular resolution (0.3 arcsec) data from CanariCam on the 10.4m Gran Telescopio CANARIAS we study the mid-IR nuclear emission of a nearby (z < 0.1) sample of QSOs. The QSOs are selected with N -band flux (fN > 0.02 Jy) and hard X-ray flux (fX(2-10keV) > 10(43) erg s(-1)). From the analysis of this data we find that the midIR emission is unresolved at scales of a few hundred of pc. We use unresolved emission at H-band (e.g., Veilleux et al. 2009b) and the IRS-Spitzer spectrum (e.g., Schweitzer et al. 2006) to build near-to mid-IR unresolved spectral energy distribution (SEDs).

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