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Testing the Unified Model with an Infrared Selected Sample of Seyferts

Published online by Cambridge University Press:  12 April 2016

H. R. Schmitt ,
J. S. Ulvestad ,
R. R. J. Antonucci ,
C. J. Clarke ,
J. E. Pringle  and
A. L. Kinney
H. R. Schmitt
Affiliation:
National Radio Astronomy Observatory, P.O. Box 0, Socorro, NM87801
J. S. Ulvestad
Affiliation:
National Radio Astronomy Observatory, P.O. Box 0, Socorro, NM87801
R. R. J. Antonucci
Affiliation:
University of California, Santa Barbara, Santa Barbara, CA93106
C. J. Clarke
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CB3 OHA, England
J. E. Pringle
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CB3 OHA, England
A. L. Kinney
Affiliation:
NASA Headquarters, 300 E St., Washington, DC20546

Abstract

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We present a series of statistical tests using homogeneous data and measurements for a sample of Seyfert galaxies. These galaxies were selected from mostly isotropic properties, their far infrared fluxes and warm infrared colors, which provide a considerable advantage over the criteria used by most investigators in the past, like ultraviolet excess. Our results provide strong support for a Unified Model in which Seyferts 2’s contain a torus seen more edge-on than in Seyferts l’s and show that previous results showing the opposite were most likely due to selection effects.

Information

Type
Part 2. Infrared and Submillimeter Surveys for AGN
Information
International Astronomical Union Colloquium , Volume 184: AGN Surveys , 2002 , pp. 173 - 178
Copyright
Copyright © Astronomical Society of the Pacific 2002

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