A Comprehensive Characterization of Galaxy-cool CGM Connections at $z<0.4$ with DESI Year 1 Data

Yu Voon Ng, Ting-Wen Lan, J. Xavier Prochaska +41

We investigate the relationships between the cool circumgalactic medium (CGM), traced by Ca II absorption lines, and galaxy properties at $z<0.4$ using $\sim 900,000$ galaxy-quasa…