489 citations · 1.7k across the 20 of their papers we have counts for
20 papers
High- radio Quasars in RACS I: Selection, identification, and multi-wavelength properties
L. Ighina, A. Caccianiga, A. Moretti +21
Radio-bright, jetted quasars at serve as unique laboratories for studying supermassive black hole activity in the early Universe. In this work, we present a sample of high-$z…
The first blazar observed at z>6
S. Belladitta, A. Moretti, A. Caccianiga +9
We present the discovery of PSO J030947.49+271757.31, the radio brightest (23.7 mJy at 1.4 GHz) active galactic nucleus (AGN) at z>6.0. It was selected by cross-matching the NRAO V…
Te-REX: a sample of extragalactic TeV-emitting candidates
B. Balmaverde, A. Caccianiga, R. Della Ceca +7
The REX (Radio-Emitting X-ray sources) is a catalogue produced by cross-matching X-ray data from the ROSAT-PSPC archive of pointed observations and radio data from the NRAO VLA Sky…
The space density of z>4 blazars
Alessandro Caccianiga, Alberto Moretti, Silvia Belladitta +9
High redshift blazars are an important class of Active Galactic Nuclei (AGN) that can provide an independent estimate of the supermassive black-hole mass function in high redshift…
A new powerful and highly variable disk wind in an AGN-star forming galaxy, the case of MCG-03-58-007
V. Braito, J. N. Reeves, G. A. Matzeu +7
We present the discovery of a new candidate for a fast disk wind, in the nearby Seyfert 2 galaxy MCG-03-58-007. This wind is discovered in a deep Suzaku observation that was perfor…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
Kirpal Nandra, Didier Barret, Xavier Barcons +237
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of tw…