DOI

https://doi.org/10.48717/1kgz-cf33

Project

EC084

Title

Probing the environment of FRB 190714A

Abstract

The discovery of fast radio bursts (FRBs) with interferometers has enabled arcsec-localisations. This sample of well-localised FRBs is crucial for progenitor identifications and constraints as they allow follow-up observations at other wavelengths. While no multi-wavelength counterparts to FRBs have been identified yet, a couple of well-localised, prolific repeating FRBs have compact persistent emission associated with them. The persistent source might be key to understanding the evolution, energetics and the formation of the FRB, and has paved the way for magnetar based progenitor models. We have recently identified compact, persistent emission possibly associated with the (so-far) non-repeating FRB 20190714A. Amongst the numerous proposed progenitor models, few predict persistent radio emission associated with non-repeating FRBs. Hence, this discovery suggests that repeaters and non-repeaters alike, could originate from similar emission processes. We propose to observe this persistent source with the EVN to confirm the association, and study the compactness and nature of this source. If confirmed, this would be the first detection of persistent radio emission from a non-repeating FRB and could have profound implications for progenitor models.