  We examine the X-ray and infrared properties of galaxies and AGNs in the 9
square degree Bootes field, using data from the Chandra XBootes and Spitzer
IRAC Shallow Surveys, as well as optical spectroscopy from the AGES survey. A
sample of ~30,000 objects are detected in all four IRAC bands, of which ~2,000
are associated with X-ray sources. We also study X-ray fainter sources using
stacking techniques, and find that X-ray fluxes are highest for objects with
IRAC colors that are known to be characteristic of AGNs. Because these are
shallow, wide-field surveys, they probe the bright end of the AGNluminosity
function out to spectroscopic redshifts as high as z=3-4. We can use this
multiwavelength dataset to explore the properties and redshift evolution of a
large sample of luminous active galaxies.
