Place: 4421 Sterling Hall, Coffee and cookies 3:30 pm, Talk starts 3:45 PM
Speaker: Joshua Wiener, UW Madison Astronomy Dept
Abstract: Cosmic rays are often cited as an appealing driver of galactic winds. Cosmic rays(CRs) have some advantages as a wind-driving mechanism, such as long cooling times which allow the CRs to keep their energy for long periods of time. In this talk I will summarize the physics of CR transport, and how CRs interact with the ambient gas in a galaxy. I present numerical simulations of isolated galaxies, which reveal how the characteristics galactic winds depend strongly on how the CR physics are modeled.