AAS 207th Meeting, 8-12 January 2006
Session 140 Spitzer Studies of AGN
Poster, Wednesday, 9:20am-6:30pm, January 11, 2006, Exhibit Hall

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[140.07] Spitzer IRAC Photometry of the 12 \mum Sample of Seyfert Galaxies

J. C. Mannello, J. F. Gallimore (Bucknell University), C. Buchanan, C. P. O'Dea, S. A. Baum, D. J. Axon, A. Robinson (R.I.T.), M. Elitzur (University of Kentucky), M. Elvis (Harvard-Smithsonian CfA)

We present 3--8 \mum photometry of 80 Seyfert galaxies selected from the extended 12 \mum sample. The data were obtained by the IRAC aboard the Spitzer Space Telescope. We employed a surface brightness modeling and decomposition algorithm to isolate the contribution of the central point source from the surrounding host galaxy. The 3--8 \mum emission is potentially dominated by the dusty medium thought to obscure the broad-line region in type 2 Seyferts. We will compare the IRAC colors of different Seyfert types and evaluate (a) current models of thermal dust emission from an obscuring torus and (b) the contribution of star-formation to the AGN luminosity on hundred-parsec scales. This research is supported by the Isaac J. Tressler fund for Astronomy at Bucknell University and by NASA through an award issued by JPL/Caltech.

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