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2005ApJ...635..864L - Astrophys. J., 635, 864-879 (2005/December-3)
The HELLAS2XMM survey. VII. The hard X-ray luminosity function of AGNs up to z = 4: more absorbed AGNs at low luminosities and high redshifts.
LA FRANCA F., FIORE F., COMASTRI A., PEROLA G.C., SACCHI N., BRUSA M., COCCHIA F., FERUGLIO C., MATT G., VIGNALI C., CARANGELO N., CILIEGI P., LAMASTRA A., MAIOLINO R., MIGNOLI M., MOLENDI S. and PUCCETTI S.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Cosmology: Diffuse Radiation - Galaxies: Active - Galaxies: Evolution - Galaxies: Quasars: General - Surveys - X-Rays: Diffuse Background
Simbad objects: 5
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