|20||Speaker: Renyue Cen (Host: Dr. Peter Hoeflich)|
Title: Physics of Galaxy Color Migration
Abstract: Utilizing state-of-the-art adaptive mesh-refinement cosmological hydrodynamic simulations, an analysis of the histories of a large sample of galaxies is performed and insights gained on how galaxies migrate from the blue cloud to the red sequence.
It is found that ram-pressure stripping and cold gas starvation are both instrumental in driving galaxies' color migration, collectively termed environment quenching. The consequences from the environment quenching are in many cases intriguing and explained in this lecture.