collaborators

9 papers

astro-ph.HE2026

A 4200-hour HyperFlash and ÉCLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts

O. S. Ould-Boukattine, A. J. Cooper, A. M. Cook +14

Hyperactive repeaters provide a unique window into the evolving environments and energy budgets of fast radio burst (FRB) sources, though they may not be representative of the FRB…

astro-ph.HE2026

VLBI Observations of SN 2012au Reveal a Compact Radio Source a Decade Post Explosion

Mattias Lazda, Kenzie Nimmo, Maria R. Drout +13

Three leading models have been put forth to justify the observed radio re-brightening associated with stripped-envelope supernovae (SESNe) years post-explosion: radiation from an e…

astro-ph.HE2026

A steadily declining dispersion measure for the repeating fast radio burst FRB 20220529A: Evidence for an FRB engine embedded in an expanding supernova remnant

Ayush Pandhi, Kenzie Nimmo, Shion Andrew +29

We present the discovery and subsequent 3.2 year monitoring campaign of the repeating fast radio burst FRB 20220529A with CHIME/FRB. We observe a gradual dispersion measure (DM) de…

astro-ph.HE2026

A HyperFlash and ÉCLAT view of the local environment and energetics of the repeating FRB 20240619D

O. S. Ould-Boukattine, A. J. Cooper, J. W. T. Hessels +16

Time-variable propagation effects provide a window into the local plasma environments of repeating fast radio burst (FRB) sources. Here we report high-cadence observations of FRB 2…

astro-ph.HE2025

A milliarcsecond localization associates FRB 20190417A with a compact persistent radio source and an extreme magneto-ionic environment

Alexandra M. Moroianu, Shivani Bhandari, Maria R. Drout +38

We report the milliarcsecond localization of a high (1379 pc/cc) dispersion measure (DM) repeating fast radio burst, FRB 20190417A. Combining European VLBI Network detections of fi…

astro-ph.HE2025

A probe of the maximum energetics of fast radio bursts through a prolific repeating source

O. S. Ould-Boukattine, P. Chawla, J. W. T. Hessels +12

Fast radio bursts (FRBs) are sufficiently energetic to be detectable from luminosity distances up to at least seven billion parsecs (redshift ). Probing the maximum energies…