| תקציר: | The Swift BAT hard x-ray survey is changing our understanding of AGN. The ability to find AGN independently of their optical, UV, IR or radio properties has produced a large sample of objects which has allowed independent measures of their total luminosity, broad band spectral characteristics and perhaps most importantly the nature of their host galaxies and indications of the reasons that a particular galaxy is an AGN. I will discuss our recent IR, optical, UV and x-ray data and indicate directions for future research. |