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The REQUIEM Survey I: A Search for Extended Ly-Alpha Nebular Emission Around 31 z>5.7 Quasars
Emanuele Paolo Farina, Fabrizio Arrigoni-Battaia, Tiago Costa +19
The discovery of quasars few hundred megayears after the Big Bang represents a major challenge to our understanding of black holes and galaxy formation and evolution. Their luminos…
Spectral Energy Distributions of Companion Galaxies to z6 Quasars
C. Mazzucchelli, R. Decarli, E. P. Farina +10
Massive, quiescent galaxies are already observed at redshift , i.e. 1.5 Gyr after the Big Bang. Current models predict them to be formed via massive, gas-rich mergers…
ALMA and HST kiloparsec-scale imaging of a quasar-galaxy merger at
Roberto Decarli, Massimo Dotti, Eduardo Bañados +12
We present kpc-scale ALMA and HST imaging of the quasar PJ308-21 at =, tracing dust, gas (via the [CII] 158 m line) and young stars. At a resolution of ($…
The First Luminous Quasars and Their Host Galaxies
Xiaohui Fan, Aaron Barth, Eduardo Banados +26
The discovery of luminous quasars at redshifts up to 7.5 demonstrates the existence of several billion M_sun supermassive black holes (SMBHs) less than a billion years after the Bi…