43 citations · 77 across the 7 of their papers we have counts for
Showing 2007 · astro-phShow all
2 papers · 2 filters
astro-ph2007
The obscured X-ray source population in the HELLAS2XMM survey: the Spitzer view
C. Vignali, Francesca Pozzi, A. Comastri +9
Recent X-ray surveys have provided a large number of high-luminosity, obscured Active Galactic Nuclei (AGN), the so-called Type 2 quasars. Despite the large amount of multi-wavelen…
astro-ph2007
The obscured quasar population from optical, mid-infrared, and X-ray surveys
C. Vignali, A. Comastri, D. M. Alexander
Over the last few years, optical, mid-infrared and X-ray surveys have brought to light a significant number of candidate obscured AGN and, among them, many Type 2 quasars, the long…