Galaxy populations in groups and clusters: evidence for a characteristic stellar mass scale at $M_{\ast }\sim 10^{9.5}{M}_{\odot }$

Jiacheng Meng, Cheng Li, Houjun Mo +3

We use the most recent data release (DR9) of the DESI legacy imaging survey and SDSS galaxy groups to measure the conditional luminosity function (CLF) for groups with halo mass $M…