An Emission Line Imaging Survey of Seyfert Nuclei in Early-type Host Galaxies as a Test of Unified Models
Session 100 -- AGN: Unified Picture
Oral presentation, Friday, January 14, 2:15-3:45, Crystal Forum Room (Crystal City Marriott)

[100.06] An Emission Line Imaging Survey of Seyfert Nuclei in Early-type Host Galaxies as a Test of Unified Models

J. S. Mulchaey, A. S. Wilson (STScI/University of Maryland), Z. Tsvetanov (Johns Hopkins University)

Preliminary results from an emission line imaging survey of a complete sample of Seyfert nuclei in early-type host galaxies will be presented. The sample is defined to include all known Seyfert nuclei with total magnitude m $\le$ 14.5 and recessional velocities $\le$ 10,000 km s$^{-1}$ residing in E, S0 and S0/a host types. Each galaxy in the sample is being imaged in the emission lines of [OIII]$\lambda$5007 and H$\alpha$. The aim of this survey is to determine the incidence of \lq\lq ionization cones\rq\rq \ in Seyfert galaxies and test the idea that the difference between the two types of Seyferts is due to different aspect angle. To facilitate this goal, the emission-line images will be compared to simulations of cones of various opening and viewing angles.