Investigating the dusty torus of Seyfert galaxies using SOFIA/FORCAST
  photometry
  We present 31.5 micron imaging photometry of 11 nearby Seyfert galaxies
observed from the Stratospheric Observatory For Infrared Astronomy (SOFIA)
using the Faint Object infraRed CAmera for the SOFIA Telescope (FORCAST). We
tentatively detect extended 31 micron emission for the first time in our
sample. In combination with this new data set, subarcsecond resolution 1-18
micron imaging and 7.5-13 micron spectroscopic observations were used to
compute the nuclear spectral energy distribution (SED) of each galaxy. We found
that the turnover of the torus emission does not occur at wavelengths <31.5
micron, which we interpret as a lower-limit for the wavelength of peak
emission. We used CLUMPY torus models to fit the nuclear infrared (IR) SED and
infer trends in the physical parameters of the AGN torus for the galaxies in
the sample. Including the 31.5 micron nuclear flux in the SED 1) reduces the
number of clumpy torus models compatible with the data, and 2) modifies the
model output for the outer radial extent of the torus for 10 of the 11 objects.
Specifically, six (60%) objects show a decrease in radial extent while four
(40%) show an increase. We find torus outer radii ranging from <1pc to 8.4 pc
