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Testing the paradigm: First spectroscopic evidence of a quasar-galaxy Mpc-scale association at cosmic dawn
Roberto Decarli, Marco Mignoli, Roberto Gilli +9
State-of-the-art models of massive black hole formation postulate that quasars at reside in extreme peaks of the cosmic density structure in the early universe. Even so, dire…
Discovery of a galaxy overdensity around a powerful, heavily obscured FRII radio galaxy at z=1.7: star formation promoted by large-scale AGN feedback?
R. Gilli, M. Mignoli, A. Peca +25
We report the discovery of a galaxy overdensity around a Compton-thick Fanaroff-Riley type II (FRII) radio galaxy at z=1.7 in the deep multiband survey around the z=6.3 QSO SDSS J1…
Discovery of the first heavily obscured QSO candidate at in a close galaxy pair
Fabio Vito, William Nielsen Brandt, Franz Erik Bauer +14
While theoretical arguments predict that most of the early growth of supermassive black holes (SMBHs) happened during heavily obscured phases of accretion, current methods used for…
Obscured AGN at 1.5 < z < 3.0 from the zCOSMOS-deep Survey I. Properties of the emitting gas in the Narrow Line Region
M. Mignoli, A. Feltre, A. Bongiorno +21
We select a sample of 90 obscured (type2) AGN with 1.45<z<3.05 from the zCOSMOS-deep galaxy sample by 5 sigma-detection of the high-ionization CIV λ1549 narrow emission line. The p…
Ionising the Intergalactic Medium by Star Clusters: The first empirical evidence
E. Vanzella, G. B. Caminha, F. Calura +14
We present a VLT/X-Shooter spectroscopy of the Lyman continuum (LyC) emitting galaxy 'Ion2' at z=3.2121 and compare it to that of the recently discovered strongly lensed LyC-emitte…