Spitzer IRAC Photometry of the 12 μ m Sample of Seyfert Galaxies

Details Spitzer IRAC Photometry of the 12 μ m Sample of Seyfert Galaxies Spitzer IRAC Photometry of the 12 μ m Sample of Seyfert Galaxies

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20714007m&link_type=abstract

American Astronomical Society Meeting 207, #140.07; Bulletin of the American Astronomical Society, Vol. 37, p.1396

Astronomy and Astrophysics

Astronomy

Scientific paper

We present 3--8 μ m photometry of 80 Seyfert galaxies selected from the extended 12 μ m 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 μ m 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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