Characterizing Circumgalactic Gas with Absorption Spectroscopy

Circumgalactic space provides a unique laboratory for studying infall and outflows of gas around star-forming regions. An effective means of probing this tenuous circumgalactic gas is through absorption spectroscopy of distant objects. This talk will first review our current understanding of the properties of the circumgalactic medium (CGM) and how the CGM has evolved over time, and then show new results on constraining CGM kinematics from multi-sightline studies.