20 citations · 91 across the 11 of their papers we have counts for
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Newly discovered Ca II absorbers in the early universe: statistics, element abundances and dust
Hannah Fang, Iona Xia, Jian Ge +2
We report discoveries of 165 new quasar Ca II absorbers from the Sloan Digital Sky Survey (SDSS) Data Release 7 and 12. Our Ca II rest frame equivalent width distribution supports…
Discovering Ca II Absorption Lines With a Neural Network
Iona Xia, Jian Ge, Kevin Willis +1
Quasar absorption line analysis is critical for studying gas and dust components and their physical and chemical properties as well as the evolution and formation of galaxies in th…
Identifying MgII Narrow Absorption Lines with Deep Learning
Yinan Zhao, Jian Ge, Xiaoyong Yuan +3
Metal absorption line systems in distant quasar spectra probe of the history of gas content in the universe. The MgII 2796, 2803 doublet is one of the most important absorptio…
Studying Quasar Absorber Host Galaxy Properties Using Image Stacking Technique
Bill Zhu, Yinan Zhao, Jian Ge +1
Studying the stellar mass, age, luminosity, star-formation rate, and impact parameter of quasar absorber host galaxies can aid in the understanding of galaxy formation and evolutio…
Quasar 2175 Å dust absorbers II: Correlation analysis and relationship with other absorption line systems
Jingzhe Ma, Jian Ge, J. Xavier Prochaska +6
We present the cold neutral content (H I and C I gas) of 13 quasar 2175 Å dust absorbers (2DAs) at = 1.6 - 2.5 to investigate the correlation between the presence of the UV…
Quasar 2175 Å dust absorbers I: metallicity, depletion pattern, and kinematics
Jingzhe Ma, Jian Ge, Yinan Zhao +4
We present 13 new 2175 Å dust absorbers at z_abs = 1.0 - 2.2 towards background quasars from the Sloan Digital Sky Survey. These absorbers are examined in detail using data from th…