423 citations · 1.8k across the 47 of their papers we have counts for
Showing 2005Show all
2 papers · 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…
astro-ph2005★ 8 cited
Optical properties of the NGC 5328 group of galaxies
R. Gruetzbauch, F. Annibali, A. Bressan +4
We present the results of a photometric and spectroscopic study of seven members of the NGC 5328 group of galaxies, a chain of galaxies spanning over 200 kpc (H_0 = 70 km/s/Mpc). W…