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THE 4 Ms<i>CHANDRA</i>DEEP FIELD-SOUTH NUMBER COUNTS APPORTIONED BY SOURCE CLASS: PERVASIVE ACTIVE GALACTIC NUCLEI AND THE ASCENT OF NORMAL GALAXIES
We present 0.5–2 keV, 2–8 keV, 4–8 keV, and 0.5–8 keV (hereafter soft, hard, ultra-hard, and full bands, respectively) cumulative and differential number-count (log N–log S) measurements for the recently completed ≈4 Ms Chandra Deep Field-South (CDF-S) survey, the deepest X-ray survey to date. We implement a new Bayesian approach, …