Kavli Affiliate: Claudio Ricci
| First 5 Authors: Lindsay Fuller, Enrique Lopez-Rodriguez, Ismael Garcia-Bernete, Cristina Ramos Almeida, Almudena Alonso-Herrero
| Summary:
We present a 19.7 – 214 $mu$m imaging atlas of local (4 – 181 Mpc; median 43
Mpc) active galactic nuclei (AGN) observed with FORCAST and HAWC+ on board the
SOFIA telescope with angular resolutions ~ 3"- 20". This atlas comprises 22
Seyferts (17 Type 2 and 5 Type 1) with a total of 69 images, 41 of which have
not been previously published. The AGN span a range of luminosities of
log$_{10}$ ($L_{bol}$ [erg/s]) = [42, 46] with a median of log$_{10}$
($L_{bol}$ [erg/s]) = 44.1 $pm$ 1.0. We provide total fluxes of our sample
using aperture photometry for point source objects and a 2-D Gaussian fitting
for objects with extended host galaxy emission, which was used to estimate the
unresolved nuclear component. Most galaxies in our sample are point-like
sources, however, four sources (Centaurus A, Circinus, NGC 1068, and NGC 4388)
show extended emission in all wavelengths. The 30 – 40 $mu$m extended emission
in NGC 4388 is coincident with the narrow line region at PA ~ 50$^{circ}$,
while the dusty extension at longer wavelengths arises from the host galaxy at
PA ~ 90$^{circ}$. Our new observations allow us to construct the best sampled
spectral energy distributions (SEDs) available between 30 – 500 $mu$m for a
sample of nearby AGN. We estimate that the average peak wavelength of the
nuclear SEDs is ~ 40 $mu$m in $nu$F$_{nu}$ , which we associate with an
unresolved extended dusty region heated by the AGN.
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