Richard Mushotzky

Title: Recent Results from the Swift BAT Very Hard X-ray Survey

Abstract: The Swift BAT survey is the least biased low redshift AGN survey and has the potential for revolutionizing our understanding of the AGN phenomena. We have discovered that AGN tend to live in massive spiral galaxies or merger systems and tend to be much more massive than field galaxies.  There is a very narrow dispersion between the hard x-ray and the optical continua and the [OIII] luminosity shows a very wide dispersion with respect to other indicators of activity.We have also found that there is very little or no relation between x-ray spectral slope and the Eddington ratio, that the mean Eddington ratio for low z objects is ~0.1, that the median high energy cutoff energy is ~100 keV  and the spectra are well fit with  Compton y parameter of ~1 and kT~100keV .  There are many more results from the survey, including the nature of the IR spectrum and   several 'discoveries' of unusual classes of objects including optically and IR invisible AGN, dual AGN and very high redshift very bright blazars