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N.A. Grogin, H.C. Ferguson, M.E. Dickinson, M. Giavalisco, B. Mobasher, P. Padovani, R.E. Williams (STScI), R. Chary (UCSC), R. Gilli, T.M. Heckman (JHU), D. Stern (JPL/Caltech), C. Winge (Gemini Observatory)
Within each of the two Chandra Deepest Fields (CDFs), there are ~10'x15' regions targeted for non-proprietary, deep SIRTF 3.6--24\mum imaging as part of the Great Observatories Origins Deep Survey (GOODS) Legacy program. In advance of the SIRTF observations, the GOODS team has recently begun obtaining non-proprietary, deep ground-based optical and near-IR imaging and spectroscopy over these regions, which contain virtually all of the current \approx1 Msec CXO coverage in the CDF North and much of the \approx1 Msec coverage in the CDF South. In particular, the planned depth of the near-IR imaging (JAB~25.3; HAB~24.8; KAB~24.4) combined with the deep Chandra data can allow us to trace the evolutionary connection between normal galaxies, starbursts, and AGN out to z~1 and beyond.
We describe our CDF Archival program, which is integrating these GOODS-supporting observations together with the CDF archival data and other publicly-available datasets in these regions to create a multi-wavelength deep imaging and spectroscpic database available to the entire community. We highlight progress toward near-term science goals of this program, including: (a) pushing constraints on the redshift distribution and spectral-energy distributions of the faintest X-ray sources to the deepest possible levels via photometric redshifts; and (b) better characterizing the heavily-obscured and the high-redshift populations via both a near-IR search for optically-undetected CDF X-ray sources and also X-ray stacking analyses on the CXO-undetected EROs in these fields.