activity
20002021
most citedThe quest for Type 2 quasars: Chandra observations of luminous obscured quasars in the Sloan Digital Sky Survey

43 citations · 98 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.GA2021★ 5 cited

The role of scatter and satellites in shaping the large-scale clustering of X-ray AGN as a function of host galaxy stellar mass

Akke Viitanen, Viola Allevato, Alexis Finoguenov +2

The co-evolution between central supermassive black holes (BH), their host galaxies, and dark matter halos is still a matter of intense debate. Present theoretical models suffer fr…

astro-ph.GA2020★ 18 cited

The MURALES survey. III. Completing the MUSE observations of 37 3C low-z radio galaxies

Barbara Balmaverde, Alessandro Capetti, Alessandro Marconi +12

We present the final observations of a complete sample of 37 radio galaxies from the Third Cambridge Catalog (3C) with redshift <0.3 and declination <20 degrees obtained with the V…

astro-ph.GA2009★ 28 cited

The HELLAS2XMM Survey. XII. The infrared/sub-millimeter view of an X-ray selected Type 2 quasar at z=2

C. Vignali, F. Pozzi, J. Fritz +11

We present multi-wavelength observations (from optical to sub-millimeter, including Spitzer and SCUBA) of H2XMMJ 003357.2-120038 (also GD158_19), an X-ray selected, luminous narrow…

astro-ph.CO2009★ 1 cited

Multi-wavelength data handling in current and future surveys: the possible role of Virtual Observatory

C. Vignali, F. Fiore, A. Comastri +5

Here we review some of the main issues related to multi-wavelength source identification and characterization, with particular emphasis on the field of X-ray surveys carried out ov…

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…