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For refcode 1999ApJS..125..349H:
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1999ApJS..125..349H Morphology of the 12 Micron Seyfert Galaxies. II. Optical and Near-Infrared Image Atlas L. K. Hunt C. A. I. S. M. I.-C. N. R. Largo E. Fermi 5, I-50125 Firenze, Italy; hunt@arcetri.astro.it M. A. Malkan University of California, Department of Astronomy, 405 Hilgard Avenue, Los Angeles, CA 90095-1562; malkan@bonnie.astro.ucla.edu B. Rush University of California, Department of Astronomy, 405 Hilgard Avenue, Los Angeles, CA 90095-1562; rush@bonnie.astro.ucla.edu M. D. Bicay S.I.R.T.F. Science Center, Infrared Processing and Analysis Center, Pasadena, CA 91109-8099; michael.d.bicay@jpl.nasa.gov B. O. Nelson Infrared Processing and Analysis Center, Pasadena, CA 91125; nelson@ipac.caltech.edu R. M. Stanga Universita di Firenze, Istituto di Astronomia, Largo E. Fermi 5, I-50125 Firenze, Italy; stanga@arcetri.astro.it and W. Webb University of California, Department of Astronomy, 405 Hilgard Avenue, Los Angeles, CA 90095-1562; webb@bonnie.astro.ucla.edu Received 1999 March 8; accepted 1999 July 13 ABSTRACT We present 263 optical and near-infrared (NIR) images for 42 1s and 48 Seyfert 2s, selected from the Extended 12 micron Galaxy Sample. Elliptically averaged profiles are derived from the images, and isophotal radii and magnitudes are calculated from these. We also report virtual aperture photometry that, judging from comparison with previous work, is accurate to roughly 0.05 mag in the optical, and 0.07 mag in the NIR. Our B-band isophotal magnitude and radii, obtained from ellipse fitting, are in good agreement with those of Third Reference Catalogue of Bright Galaxies. When compared with the B band, V, I, J, and K isophotal diameters show that the colors in the outer regions of Seyfert galaxies are consistent with the colors of normal spirals. Differences in the integrated isophotal colors and comparison with a simple model show that the active nucleus+bulge are stronger and redder in the NIR than in the optical. Finally, roughly estimated Seyfert disk surface brightnesses are significantly brighter in B and K than those in normal spirals of similar morphological type. Subject headings: atlases-infrared: galaxies-galaxies: photometry-galaxies: Seyfert-galaxies: structure
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