Plasma Physics (Physics/ECE/NE 922) Seminars |
Events During the Week of April 2nd through April 9th, 2023
Monday, April 3rd, 2023
- Cosmic Ray Transport Theory in light of Milky Way Data
- Time: 12:00 pm
- Place: 2241 Chamberlin Hall
- Speaker: Philipp Kempski, Princeton University
- Abstract: Relativistic cosmic rays (CRs) may play an important role in the evolution of galaxies and clusters by driving galactic winds and heating diffuse gas. As a result, “CR feedback” has become a key ingredient in galaxy evolution models. However, a fundamental limitation of these models is that the nature of CR feedback is a very strong function of the assumed CR transport. Getting a better handle on the microphysics of CR propagation is therefore essential for understanding the macrophysics of CR feedback in galaxies. In this talk, I will discuss theoretical models of CR propagation and how CR spectra measured at Earth help us constrain their transport physics. I will show that existing theories of CR transport remain uncertain and are generally not in good agreement with local observations, which suggests that there may be a significant theoretical gap in our understanding of CR propagation.
Tuesday, April 4th, 2023
- No events scheduled
Wednesday, April 5th, 2023
- No events scheduled
Thursday, April 6th, 2023
- No events scheduled
Friday, April 7th, 2023
- No events scheduled