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J. P. Kelly (NRAO & University of Virginia), H. R. Schmitt (NRAO)
In this study we test some of the implications of the Unified Model with a sample of 62 Seyfert 1s and 125 Seyfert 2s selected by a mostly isotropic property, their 60\mum fluxes. The 3.6cm continuum data was obtained using the VLA in A-configuration and optical data was retrieved from the DSS. As well, sources from the VLA archive and from the literature were added. We performed statistical tests to examine differences between Seyfert 1s and 2s based on radio luminosity, infrared luminosity, radio extent, and host galaxy inclination. We find the radio and infrared luminosities to be nearly isotropic, fitting the believed structure of the circumnuclear torus, and the ratio of 25\mum to 60\mum luminosities confirms models concerning the distribution of radiation in the torus. The results of radio extent measurements do not show the expected excess of radio large Seyfert 2s, however we discuss factors that could lead to this result. Finally, we show that a relatively larger number of Seyfert 2s reside in edge-on galaxies, which may be due to the galactic plane acting as a putative torus.
The author(s) of this abstract have provided an email address for comments about the abstract: johnkelly@virginia.edu
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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.