The Chandra COSMOS Survey. I. Overview and Point Source Catalog (2009)
Elvis, Martin, Civano, Francesca, Vignali, Cristian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.5 deg^2 of the COSMOS field (centered at 10 ^h , +02 ^o ) with an effective exposure of ~160 ks,...
The Chandra COSMOS Survey, I: Overview and Point Source Catalog (2009)
Elvis, Martin, Civano, Francesca, Vignali, Cristian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra} program that has imaged the central 0.5 sq.deg of the COSMOS field (centered at 10h, +02deg) with an effective exposure of ~160ksec,...
XEUS: the physics of the hot evolving universe (2009)
Arnaud, Monique, Barcons, Xavier, Barret, Didier, Bautz, Marshall, Bellazzini, Ronaldo, Bleeker, Johan, ...
Osservatorio Astronomico, Monica Ferrarini, Marco Lolli, Roberto Merighi, Cristian Vignali, Bruno Marano
The Osservatorio Astronomico di Bologna is one of the twelve Italian Observatories, operating under the supervision of the Ministry for University and Scientific and Technological Research. The...
On the absorption of X-ray bright broad absorption line quasars (2008)
Giustini, Margherita, Cappi, Massimo, Vignali, Cristian
Most X-ray studies of BALQSOs found significant (N_H~10^{22-24} cm^{-2}) intrinsic column densities of gas absorbing an underlying typical power-law continuum emission, in agreement with expectations...
Compton-thick AGN and the synthesis of the cosmic X-ray background: the Suzaku perspective (2007)
Gilli, Roberto, Comastri, Andrea, Vignali, Cristian, Hasinger, Günther
Compton thick AGN in the Suzaku era (2007)
Comastri, Andrea, Gilli, Roberto, Vignali, Cristian, Matt, Giorgio, Fiore, Fabrizio, Iwasawa, Kazushi
The obscured X-ray source population in the HELLAS2XMM survey: the Spitzer view (2007)
Vignali, Cristian, Pozzi, Francesca, Comastri, Andrea, Pozzetti, Lucia, Mignoli, Marco, Gruppioni, Carlotta, ...
Soft X-ray and Ultraviolet Emission Relations in Optically Selected AGN Samples (2005)
Strateva, Iskra, Brandt, Niel, Schneider, Donald, Berk, Daniel Vanden, Vignali, Cristian
Using a sample of 228 optically selected Active Galactic Nuclei (AGNs) in the 0.01-6.3 redshift range with a high fraction of X-ray detections (81-86%), we study the relation between rest-frame UV...
Arakelian 564: an XMM-Newton view (2004)
Vignali, Cristian, Brandt, W. N., Boller, Th., Fabian, A. C., Vaughan, Simon
Sub-mm and X-ray background: Two unrelated phenomena? (2000)
Severgnini, Paola, Maiolino, Roberto, Salvati, Marco, Axon, David, Cimatti, Andrea, Fiore, Fabrizio, ...
Also archived in: arXiv:astro-ph/0006233 v1 16 Jun 2000
Sub-mm and X-ray background: Two unrelated phenomena? (2000)
Severgnini, Paola, Maiolino, Roberto, Salvati, Marco, Axon, David, Cimatti, Andrea, Fiore, Fabrizio, ...
Also archived in: arXiv:astro-ph/0006233 v1 16 Jun 2000