W. Yi

activity

20152023

most citedAn ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30

757 citations · 1.3k across the 17 of their papers we have counts for

collaborators

Showing 2020 · astro-ph.GAShow all

2 papers · 2 filters

astro-ph.GA2020★ 12 cited

CIV emission line properties and uncertainties in black hole mass estimates of z ~ 3.5 quasars

Wenwen Zuo, Xue-Bing Wu, Xiaohui Fan +5

Using a high luminosity ( $L_{bol} \sim 1 0^{47.5} - 1 0^{48.3}$ erg s $^{- 1}$ ), high redshift ( $3.2 < z < 3.8$ ) quasar sample of 19 quasars with optical and near-infrared spectros…

astro-ph.GA2020★ 34 cited

An Extreme X-ray Variability Event of a Weak-Line Quasar

Qingling Ni, W. N. Brandt, W. Yi +8

We report the discovery of an extreme X-ray flux rise (by a factor of > 20) of the weak-line quasar SDSS J153913.47+395423.4 (hereafter SDSS J1539+3954) at z = 1.935. SDSS J1539+39…