2 citations · 3 across the 5 of their papers we have counts for
5 papers
Mining the XRT archive to probe the X-ray absorber structure in the AGN population
L. Ballo, P. Severgnini, A. Moretti +6
One of the key ingredients of the Unified Model of Active Galactic Nuclei (AGN) is the presence of a torus-like optically thick medium composed by dust and gas around the putative…
The TNG EROs Spectroscopic Identification Survey (TESIS)
P. Saracco, M. Longhetti, R. Della Ceca +8
We are carrying on a near-IR very low resolution spectroscopic follow-up in parallel with XMM-Newton observations of a complete sample of ~30 bright (K'<18.5) Extremely Red Objects…
TESIS - The TNG EROs Spectroscopic Identification Survey
P. Saracco, M. Longhetti, P. Severgnini +8
A near-IR low-resolution spectroscopic follow-up of a complete sample of K<18.5 EROs has started at the 3.5 m Telescopio Nazionale Galileo (TNG, La Palma, Canary Islands) by using…
X-ray bright optically quiet galaxies: the case of P3
A. Comastri, M. Brusa, P. Ciliegi +10
Recent X-ray surveys have clearly demonstrated that a population of optically dull, X-ray bright galaxies is emerging at X-ray fluxes of the order of 10-14 erg cm-2 s-1. The nature…
Properties of the circumnuclear medium in Active Galactic Nuclei
R. Gilli, G. Risaliti, P. Severgnini +3
We propose a classification scheme for the circumnuclear medium of AGNs based on their location in the A_V - N_H plane (related to dust absorption and gas absorption, respectively)…