TK Chan (UC San Diego)
Stellar feedback is an indispensable component in galaxy evolution, which regulates star formation, drives galactic winds, and shapes galaxy structures. I will focus on an important kind of stellar feedback — cosmic ray (CR) feedback, which we have recently implemented in the code GIZMO and coupled to the ``Feedback In Realistic Environment'' (FIRE) stellar feedback model. I will demonstrate its strong effects on galaxies, e.g. star formation, galactic wind, and circum-galactic medium, but the effects highly depend on the CR propagation models. I will then show how to constrain the CR propagation models by comparing our simulations with the observed gamma ray emission. Finally, I will discuss the ongoing research and future direction.
