activity
20042008
most citedThe HELLAS2XMM survey. VII. The hard X-ray luminosity function of AGN up to z=4: more absorbed AGN at low luminosities and high redshifts

423 citations · 673 across the 8 of their papers we have counts for

collaborators
Showing 2005Show all

1 paper · 1 filter

astro-ph2005★ 423 cited

The HELLAS2XMM survey. VII. The hard X-ray luminosity function of AGN up to z=4: more absorbed AGN at low luminosities and high redshifts

F. La Franca, F. Fiore, A. Comastri +14

We have determined the cosmological evolution of the density of AGN and of their Nh distribution as a function of the un-absorbed 2-10 keV luminosity up to redshift 4. We used the…