151 citations · 685 across the 24 of their papers we have counts for
3 papers · 1 filter
The XBS sample of type 1 AGNs: Radio loudness vs. physical parameters
A. Caccianiga, P. Severgnini, R. Della Ceca +2
We have studied the relationship between the AGN radio-loudness and the mass of the central black-hole by using the ~190 type 1 AGN selected in the XMM-Newton Bright Survey (XBS).…
The Growth of Supermassive Black Holes Across Cosmic Time
K. Nandra, J. A. Aird, D. M. Alexander +54
One of the main themes in extragalactic astronomy for the next decade will be the evolution of galaxies over cosmic time. Many future observatories, including JWST, ALMA, GMT, TMT…
Heavily obscured AGN with SIMBOL-X
R. Della Ceca, A. Caccianiga, P. Severgnini
By comparing an optically selected sample of narrow lines AGN with an X-ray selected sample of AGN we have recently derived an estimate of the intrinsic (i.e. before absorption) 2-…