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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…
Quasars Have Fewer Close Companions than Normal Galaxies
Minghao Yue, Xiaohui Fan, Jan-Torge Schindler +2
We investigate the distribution of companion galaxies around quasars using {\em Hubble Space Telescope} ({\em HST}) Advanced Camera for Surveys Wide Field Camera (ACS/WFC) archival…
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 Extremely Luminous Quasar Survey in the Pan-STARRS 1 Footprint (PS-ELQS)
Jan-Torge Schindler, Xiaohui Fan, Yun-Hsin Huang +7
We present the results of the Extremely Luminous Quasar Survey in the survey of the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS; PS1). This effort applies…