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The Infrared Nuclear Emission of Seyfert Galaxies on Parsec Scales: Testing the Clumpy Torus Models

Published online by Cambridge University Press:  03 June 2010

C. Ramos Almeida ,
N. A. Levenson ,
J. M. Rodríguez Espinosa ,
A. Alonso Herrero ,
A. Asensio Ramos ,
J. T. Radomski ,
C. Packham ,
R. S. Fisher  and
C. M. Telesco
C. Ramos Almeida
Affiliation:
Instituto de Astrofísica de Canarias Email: [email protected]
N. A. Levenson
Affiliation:
University of Kentucky
J. M. Rodríguez Espinosa
Affiliation:
Instituto de Astrofísica de Canarias Email: [email protected]
A. Alonso Herrero
Affiliation:
Instituto de Estructura de la Materia
A. Asensio Ramos
Affiliation:
Instituto de Astrofísica de Canarias Email: [email protected]
J. T. Radomski
Affiliation:
Gemini South Observatory
C. Packham
Affiliation:
University of Florida
R. S. Fisher
Affiliation:
Gemini North Observatory
C. M. Telesco
Affiliation:
University of Florida
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We present subarcsecond resolution mid-infrared (mid-IR) photometry in the range from 8 to 20 μm of 18 nearby Seyfert galaxies, reporting high spatial resolution nuclear fluxes for the entire sample (see Table 3 of Ramos Almeida et al. 2009). We construct spectral energy distributions (SEDs) that the AGN dominates, relatively uncontaminated by starlight, adding near-IR measurements from the literature at similar angular resolution. We find that the IR SEDs of intermediate-type Seyferts are flatter and present higher 10 to 18 μm ratios than those of Seyfert 2 (Sy2) galaxies.

Keywords

galaxies: activegalaxies: nucleigalaxies: Seyfertinfrared: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S267: Co-Evolution of Central Black Holes and Galaxies , August 2009 , pp. 132
Copyright
Copyright © International Astronomical Union 2010

References

Asensio Ramos, A. & Ramos Almeida, C. 2009, ApJ, 696, 2075CrossRefGoogle Scholar
Nenkova, M., Sirocky, M. M., Nikutta, R., Ivezić, Z., & Elitzur, M. 2008, ApJ, 685, 160CrossRefGoogle Scholar
Ramos Almeida, C., et al. 2009, ApJ, 702, 1127CrossRefGoogle Scholar