350 citations · 2k across the 43 of their papers we have counts for
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astro-ph.GA2018★ 26 cited
What determines the local metallicity of galaxies: global stellar mass, local stellar mass surface density or star formation rate?
Yulong Gao, Enci Wang, Xu Kong +8
The metallicity and its relationship with other galactic properties is a fundamental probe of the evolution of galaxies. In this work, we select about 750,000 star-forming spatial…
astro-ph.GA2018★ 21 cited
Distance, Energy, and Variability of Quasar Outflows: Two HST/COS epochs of LBQS 1206+1052
Timothy R. Miller, Nahum Arav, Xinfeng Xu +4
We analyze new HST/COS spectra for two quasar absorption outflows seen in the quasi-stellar object LBQS 1206+1052. These data cover, for the first time, absorption troughs from $S_…
astro-ph.GA2018★ 89 cited
Evidence that 50% of BALQSO Outflows Are Situated at Least 100 pc from the Central Source
Nahum Arav, Guilin Liu, Xinfeng Xu +3
The most robust way for determining the distance of quasar absorption outflows is the use of troughs from ionic excited states. The column density ratio between the excited and res…