The Cosmic Evolution and Spatial Distribution of Multiphase Gas associated with QSOs

Zeyu Chen, Enci Wang, Hu Zou +10

We investigate the multi-phase gas surrounding QSOs traced by 33 absorption lines (e.g., Ly$\alpha$, C\,\textsc{iv}, Fe\,\textsc{ii}, Mg\,\textsc{ii}, etc.) in the stacked spectra of ba…