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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…
Discovery of intergalactic bridges connecting two faint quasars
Fabrizio Arrigoni Battaia, Aura Obreja, J. Xavier Prochaska +6
We use MUSE/VLT to conduct a survey of physical quasar pairs at close separation with a fast observation strategy. Our aim is twofold: (i) explore the Ly glow around th…
X-ray Observations of a Quasar/Galaxy Merger
Thomas Connor, Eduardo Bañados, Daniel Stern +7
Quasars at early redshifts () with companion galaxies offer unique insights into the growth and evolution of the first supermassive black holes. Here, we report on a 150 ks…
The z=7.54 Quasar ULAS J1342+0928 Is Hosted by a Galaxy Merger
Eduardo Banados, Mladen Novak, Marcel Neeleman +9
We present ALMA 0.28"x0.20" (1.4kpc x 1.0kpc) resolution observations of the [CII] 158um line and underlying dust continuum in the host galaxy of the most distant quasar currently…
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…
Resolved [CII] Emission from z>6 Quasar Host -- Companion Galaxy Pairs
Marcel Neeleman, Eduardo Bañados, Fabian Walter +10
We report on ~0.35"(~2 kpc) resolution observations of the [CII] and dust continuum emission from five z>6 quasar host-companion galaxy pairs obtained with the Atacama Large Millim…