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Deep XMM-Newton Observations of an X-ray Weak, Broad Absorption Line Quasar at
Jinyi Yang, Xiaohui Fan, Feige Wang +14
We report X-ray observations of the most distant known gravitationally lensed quasar, J0439+1634 at , which is also a broad absorption line (BAL) quasar, using the XMM-Newt…
Quasar UV Luminosity Function at from SDSS Deep Imaging Data
Zhiwei Pan, Linhua Jiang, Xiaohui Fan +2
We present a well-designed sample of more than 1000 type 1 quasars at and derive UV quasar luminosity functions (QLFs) in this redshift range. These quasars were selected…
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…
Revisiting the Lensed Fraction of High-Redshift Quasars
Minghao Yue, Xiaohui Fan, Jinyi Yang +1
The observed lensed fraction of high-redshift quasars is significantly lower than previous theoretical predictions . We revisit the lensed fraction of h…
Paving the Way for Euclid and JWST via Optimal Selection of High-z Quasars
Riccardo Nanni, Joseph F. Hennawi, Feige Wang +3
We introduce a probabilistic approach to select 6<z<8 quasar candidates for spectroscopic follow-up, which is based on density estimation in the high-dimensional space inhabited by…
Discovery of a protocluster core associated with an enormous Ly Nebula at
Qiong Li, Ran Wang, Helmut Dannerbauer +10
The MAMMOTH-1 nebula at is an enormous Ly nebula (ELAN) extending to a 440 kpc scale at the center of the extreme galaxy overdensity BOSS 1441. In this paper, we…