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Metallicity in Quasar Broad Line Regions at Redshift 6
Shu Wang, Linhua Jiang, Yue Shen +10
Broad line regions (BLRs) in high-redshift quasars provide crucial information of chemical enrichment in the early universe. Here we present a study of BLR metallicities in 33 quas…
A Multiwavelength Study of ELAN Environments (AMUSE). Mass budget, satellites spin alignment and gas infall in a massive quasar host halo
Fabrizio Arrigoni Battaia, Chian-Chou Chen, Hau-Yu Baobab Liu +14
The systematic targeting of extended Ly emission around high-redshift quasars resulted in the discovery of rare and bright Enormous Ly Nebulae (ELANe) associated with multipl…
X-Ray Evidence Against the Hypothesis that the Hyper-Luminous z=6.3 Quasar J0100+2802 is Lensed
Thomas Connor, Daniel Stern, Eduardo Bañados +1
The quasar SDSS J010013.02+280225.8 (hereafter J0100+2802) is believed to be powered by a black hole more massive than , making it the most massiv…
Supermassive black holes in cosmological simulations II: the AGN population and predictions for upcoming X-ray missions
Melanie Habouzit, Rachel S. Somerville, Yuan Li +13
In large-scale hydrodynamical cosmological simulations, the fate of massive galaxies is mainly dictated by the modeling of feedback from active galactic nuclei (AGN). The amount of…
Probing Early Super-massive Black Hole Growth and Quasar Evolution with Near-infrared Spectroscopy of 37 Reionization-era Quasars at 6.3 < z <= 7.64
Jinyi Yang, Feige Wang, Xiaohui Fan +18
We report the results of near-infrared spectroscopic observations of 37 quasars in the redshift range , including 32 quasars at , forming the largest quasar n…
Chasing the Tail of Cosmic Reionization with Dark Gap Statistics in the Ly Forest over
Yongda Zhu, George D. Becker, Sarah E. I. Bosman +14
We present a new investigation of the intergalactic medium (IGM) near the end of reionization using "dark gaps" in the Lyman-alpha (Ly) forest. Using spectra of 55 QSOs at $z_{\…