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Johnson, O.; Almaini, O.; Lawrence, A.; Manners, J.; Dunlop, J.; Mann, B.; Perez Fournon, I.; Gonzales Solares, E.; Willott, C.; Oliver, S.; Rowan-Robinson, M.; Serjeant, S.; Ciliegi, P. and McMahon, R.
(2002).
Abstract
As the epoch of spheroid formation in massive galaxies is believed to correspond to the growth of active nuclei, probing the population of obscured AGN at high redshift is a particularly important capability of deep Chandra and XMM surveys. We present first results of the ELAIS/SCUBA Chandra survey, including optical and IR spectroscopic identifications, and explote the constraints these data place on models of the XRB requiring a vast population of heavily obscured AGN.