2.7k citations · 2.9k across the 6 of their papers we have counts for
6 papers
The evolution of the heaviest super-massive black-holes in jetted AGNs
Alessandro Diana, Alessandro Caccianiga, Alberto Moretti +3
We present the space density evolution, from z=1.5 up to z=5.5, of the most massive (MM) black holes hosted in jetted Active Galactic Nuclei(AGNs). The analysis…
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…
Galaxy Clusters in the Swift/BAT era: Hard X-rays in the ICM
M. Ajello, P. Rebusco, N. Cappelluti +6
We report about the detection of 10 clusters of galaxies in the ongoing Swift/BAT all-sky survey. This sample, which comprises mostly merging clusters, was serendipitously detected…
The Swift X-ray Telescope
David N. Burrows, J. E. Hill, J. A. Nousek +21
The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to deter…
The Brera Multi-scale Wavelet HRI Cluster Survey: I Selection of the Sample and Number Counts
A. Moretti, L. Guzzo, S. Campana +7
We describe the construction of the Brera Multi-scale Wavelet (BMW) HRI Cluster Survey, a deep sample of serendipitous X-ray selected clusters of galaxies based on the ROSAT HRI ar…
The deepest X-ray look at the Universe
S. Campana, A. Moretti, D. Lazzati +1
The origin of the X-ray background, in particular at hard (2-10 keV) energies, has been a debated issue for more than 30 years. The Chandra deep fields provide the deepest look at…