236 citations · 560 across the 14 of their papers we have counts for
5 papers · 1 filter
AGN counts at 15um. XMM observations of the ELAIS-S1-5 sample
F. La Franca, S. Puccetti, N. Sacchi +7
Context: The counts of galaxies and AGN in the mid infra-red (MIR) bands are important instruments for studying their cosmological evolution. However, the classic spectral line rat…
Unveiling obscured accretion in the Chandra Deep Field South
F. Fiore, A. Grazian, P. Santini +10
A large population of heavily obscured, Compton Thick AGNs is predicted by models of galaxy formation, models of Cosmic X-ray Background and by the ``relic'' super-massive black-ho…
The HELLAS2XMM survey. X. The bolometric output of luminous obscured quasars: The Spitzer perspective
F. Pozzi, C. Vignali, A. Comastri +10
Aims: We aim at estimating the spectral energy distributions (SEDs) and the physical parameters related to the black holes harbored in eight high X-ray-to-optical (F_X/F_R>10) obsc…
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…
Hidden activity in high-redshift spheroidal galaxies from mid-infrared and X-ray observations in the GOODS-North field
G. Rodighiero, C. Gruppioni, F. Civano +6
We exploit very deep mid-IR (MIR) and X-ray observations by Spitzer and Chandra in the GOODS North to identify signs of hidden (either starburst or AGN) activity in spheroidal gala…