Date: Wednesday 12-Mar-2025
Time: 11:30-12:30 pm
Location: PSC 1136
Speaker: Ryan Golant (Columbia University)
Title: To B or not to B: The Creation and Consequences of Astrophysical Magnetic Fields
Abstract: Magnetic fields play a key role in a wide array of astrophysical systems, yet, in many cases, the origins of these magnetic fields remain unclear. In this talk, I will describe one possible channel for generating and amplifying magnetic fields in the low-density Universe: the fully-kinetic, collisionless dynamo. In particular, I will discuss the potential link between the collisionless dynamo and the magnetic fields in cosmic voids, the emptiest regions of the cosmos. I will also show some preliminary analysis of the properties of the tangled field lines produced by the collisionless dynamo and by large-amplitude kinetic turbulence, which may be relevant to the confinement of Galactic cosmic rays.
Guidelines and format for the CTC Lunch seminars.
Past CTC Lunch seminars.
For other questions, contact the CTC Lunch host: Ankita Bera
SPECIAL ACCOMMODATIONS:
Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.
