NPAC (Nuclear/Particle/Astro/Cosmo) Forum |
Organized by: Prof. Lu Lu
Events During the Week of September 28th through October 5th, 2025
Monday, September 29th, 2025
- No events scheduled
Tuesday, September 30th, 2025
- No events scheduled
Wednesday, October 1st, 2025
- No events scheduled
Thursday, October 2nd, 2025
- Cosmic ray processes across the Universe: multi-messenger insights form Galaxies to the Cosmic Web
- Time: 2:30 pm - 3:30 pm
- Place: Chamberlin Hall, Room 5280
- Speaker: Ellis Owen, RIKEN, Japan
- Abstract: Cosmic rays interact with astrophysical systems across a vast range of scales, from turbulent galactic environments to the large-scale structure of the Universe. Closely linked to violent, high-energy processes, they act as a dynamic feedback agent, regulating the physical conditions and long-term evolution of galactic and circum-galactic ecosystems. Depending on their energy, cosmic rays can also escape from their host galaxies, propagate through the cosmic web, and produce multi-wavelength and multi-messenger signatures that encode information about their interactions, environments, and transport physics. In this talk, I will highlight key observational tracers, including those from multi-messenger probes, that can be used to map the physical effects of cosmic rays across astrophysical environments and extend studies of galaxies beyond traditional astronomical techniques. I will also examine the role of cosmic rays in shaping baryonic flows around galaxies, and discuss their fate as they traverse the magnetized large-scale structures of the Universe, including the highest-energy particles that may never reach us on Earth.
- Host: Ellen Zweibel
Friday, October 3rd, 2025
- No events scheduled