id author title date pages extension mime words sentence flesch summary cache txt 6395w66656g Michelle A. Berg The Role of Dense Circumgalactic Gas in Shaping Galaxies 2021 .txt text/plain 343 10 50 This dissertation is composed of two projects that study the circumgalactic medium (CGM) of galaxies at z < 1, searching for connections between the gas in galaxy halos and their host galaxy properties. This galaxy-selected survey uses luminous red galaxies (LRGs, logM★ > 11 M⊙) at z ~ 0.5 to observationally test model predictions for cold-mode and hot-mode accretion into galaxy halos by determining the cool HI gas content in LRG halos and the metallicity of the absorbers we detect. cache/6395w66656g.txt txt/6395w66656g.txt