Title: High Resolution Mid-Infrared Imaging of Dusty Narrow Line Regions (NLR) in Seyferts  
Author(s): J. T. Radomski (Gemini Obs.), C. Packham (Univ. FL), N. A. Levenson (Univ. KY) , 
R. E. Mason (Gemini Obs.), and C. M. Telesco (Univ. FL)
Abstract: We present high angular resolution observations of nearby Seyferts which show 
extended mid-IR emission coincident with the NLR region.  Typically this emission overlaps 
well with extended [OIII] as a delineation of the ionization cone associated with these 
active galactic nuclei (AGN).  We find that the overall extent of the mid-IR emission is 
related to the luminosity of the central AGN and is mostly like due to dust heated by the 
central source.  A simple model of dust re-radiation in a strong UV –field shows a 
similarity in properties in these dusty NLR and can be used to predict the extent of this 
mid-IR emission in Seyferts.  Techniques for separating emission from the dusty NLR and 
the central dusty torus in Seyferts are also presented.  By modeling and subtracting the 
contamination of the mid-IR emission associated with the dusty NLR, better measurements 
of the torus emission are made which improve modeling of such structures.