2014ApJ...781L..34M

We present early results of the Herschel PACS (70 and 160 µm) and SPIRE (250, 350, and 500 µm) survey of 313 low redshift (z < 0.05), ultra-hard X-ray (14-195 keV) selected active galactic nuclei (AGNs) from the 58 month Swift/Burst Alert Telescope catalog. Selection of AGNs from ultra-hard X-rays avoids bias from obscuration, providing a complete sample of AGNs to study the connection between nuclear activity and star formation in host galaxies. With the high angular resolution of PACS, we find that >35% and >20% of the sources are "point-like" at 70 and 160 µm respectively and many more have their flux dominated by a point source located at the nucleus. The inferred star formation rates (SFRs) of 0.1-100 M_☉/yr using the 70 and 160 µm flux densities as SFR indicators are consistent with those inferred from Spitzer Ne II fluxes, but we find that 11.25 µm polycyclic aromatic hydrocarbon data give ∼3x lower SFR. Using GALFIT to measure the size of the far-infrared emitting regions, we determined the SFR surface density (M_☉/yr/kpc2) for our sample, finding that a significant fraction of these sources exceed the threshold for star formation driven winds (0.1 M_☉/yr/kpc2).