The 1 Ms Chandra Survey of the HDF-N: Populations at the Faintest X-ray Fluxes

Abstract

The Chandra Deep Field-North survey, which has at its center the Hubble Deep Field-North, has reached an exposure of 1 Ms and is now available to the public for analysis. This great astronomical resource will soon be released to the community in the form of a catalog paper with accurate X-ray fluxes in four bands and astrometry good to approximately 0.6-1.2 arcseconds over the entire ACIS-I field. The scientific focus of this contribution is the population of X-ray sources detected at X-ray fluxes below the faintest detection limits of X-ray observatories such as ROSAT and ASCA. These include fairly normal and star-forming galaxies out to z=2, starburst galaxies from z=2-4 and possibly very high redshift (z> 6) AGN. The exciting new prospects for studying these populations in the X-ray band are discussed.