Published in
Oxford University Press (OUP), Monthly Notices of the Royal Astronomical Society, 1(468), p. 2-46
DOI: 10.1093/mnras/stx307
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The dusty tori of nearby QSOs as constrained by high-resolution mid-IR observations
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Abstract
We present mid-infrared (MIR, 7.5-13.5 $μ$m) imaging and spectroscopy observations obtained with the CanariCam (CC) instrument on the 10.4m Gran Telescopio CANARIAS for a sample of 20 nearby, MIR bright and X-ray luminous QSOs. We find that for the majority of QSOs the MIR emission is unresolved at angular scales nearly 0.3 arcsec, corresponding to physical scales $ 2$ per cent) and low geometrical covering factors ($f_{2}