Roles of Cosmic Rays & Magnetic Fields in Galactic Disk & Halo Evolution
Abstract
Magnetic fields and cosmic rays are decidely important aspects of galactic disk and halo evolution, however, their precise roles are not yet completely understood. While there are many simulations studying galactic evolution, few have deeply explored the exact impact of cosmic rays and magnetic fields in the evolutionary process. The current goal of our research is to learn more about how cosmic rays and magnetic fields contribute to the evolutionary process by looking at how magnetic fields grow and change in the circumgalactic medium (CMG) under the influences of cosmic rays. Using a suite of simulated, isolated disk galaxies, we investigated the role of cosmic rays in magnetic field growth and galaxy evolution by comparing different galactic models, each possessing slightly varied cosmic ray and magnetic field properties. We will present the role of cosmic ray transport on the geometry, strength, and growth rate of magnetic fields in these simulated galactic halos.
- Publication:
-
American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23314528C