The detection of repetition from a fast radio burst (FRB) source instantly ruled out cataclysmic models for at least the repeating FRB population. Repeaters also offered us the first opportunities for high-precision localization and multi-wavelength burst follow-up. In the ten years since this discovery, we have identified and characterized a diverse population of repeating FRB sources, their host galaxies, and their burst properties. Still, the question, "Do all FRBs repeat?" remains elusive. The Canadian Hydrogen Intensity Mapping Experiment's FRB search (CHIME/FRB) has discovered 95% of the known repeaters to date. In this talk, I'll walk through our repeater detection pipeline, which employs a Bayesian hierarchical non-homogeneous Poisson point-process framework, before introducing our sample of 30 new repeaters drawn from our catalog of more than 3,600 FRBs. Interestingly, the first FRB localized using the full CHIME/FRB Outrigger array appears energetically inconsistent with the known repeater population. I will discuss this result, along with other emerging lines of evidence, in our ongoing effort to address the question of whether all FRBs ultimately repeat.
Add to Calendar
2026-05-29T13:30:002026-05-29T14:30:00Do all FRBs Repeat? The latest from CHIME/FRBEvent Information:
Abstract:
The detection of repetition from a fast radio burst (FRB) source instantly ruled out cataclysmic models for at least the repeating FRB population. Repeaters also offered us the first opportunities for high-precision localization and multi-wavelength burst follow-up. In the ten years since this discovery, we have identified and characterized a diverse population of repeating FRB sources, their host galaxies, and their burst properties. Still, the question, "Do all FRBs repeat?" remains elusive. The Canadian Hydrogen Intensity Mapping Experiment's FRB search (CHIME/FRB) has discovered 95% of the known repeaters to date. In this talk, I'll walk through our repeater detection pipeline, which employs a Bayesian hierarchical non-homogeneous Poisson point-process framework, before introducing our sample of 30 new repeaters drawn from our catalog of more than 3,600 FRBs. Interestingly, the first FRB localized using the full CHIME/FRB Outrigger array appears energetically inconsistent with the known repeater population. I will discuss this result, along with other emerging lines of evidence, in our ongoing effort to address the question of whether all FRBs ultimately repeat.
Learn More:
Read more about Amanda Cook here: https://cookamanda.github.io/ Event Location:
HENN 318
