Physics Colloquium

"Fast radio burst science results from CHIME"

Presented by Prof. Kendrick Smitth, Perimeter Institute for Theoretical Physics

Tuesday, May 10, 2022, 3:30 pm — Hybrid: Building 510, Large Seminar Room

Please note that coffee and cookies will be available in the Large Seminar Lounge starting 3 pm, in advance of the talk at 3:30 pm.

Abstract: Fast radio bursts (FRB's) are a recently discovered, poorly understood class of transient event, and understanding their origin has become a central problem in astrophysics. I will present FRB science results from CHIME, a new interferometric telescope at radio frequencies 400-800 MHz. In the ~3 years since first light, CHIME has found ~20 times more FRB's than all other telescopes combined, including ~60 new repeating FRB's, the first repeating FRB with periodic activity, a giant pulse from a Galactic magnetar which may be an FRB in our own galaxy, and millisecond periodicity in FRB sub-pulses. These results were made possible by new algorithms which can be used to build radio telescopes orders of magnitude more powerful than CHIME. I will briefly describe two upcoming projects: outrigger telescopes for CHIME (starting 2022) and CHORD, a new telescope with ~10 times the CHIME mapping speed (starting 2024).

Hosted by: Erin Sheldon

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