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astro-ph2003
High Redshift Supermassive Black Holes: X-ray observations
Andrea Comastri, the Hellas2Xmm team
The spectrum of the hard X-ray background records the history of accretion processes integrated over the cosmic time. Several observational and theoretical evidences indicate that…
astro-ph2002
New Constraints on Galaxy Evolution from the Optical Monitor on XMM-Newton
T. P. Sasseen, I. Eisenman, K. Mason +1
We use galaxies detected in a deep ultraviolet XMM-Newton Optical Monitor image and a model that predicts UV galaxy counts based on local counts and evolution parameters to constra…