Multi-wavelength and Multi-messenger Counterparts of Fast Radio Bursts

TL;DR

This paper reviews the current state of research on multi-wavelength and multi-messenger counterparts of fast radio bursts, including observational efforts and theoretical models, highlighting the challenges and recent progress in detecting associated signals.

Contribution

It provides a comprehensive review of potential multi-wavelength and multi-messenger signals related to FRBs, summarizing observational searches and theoretical predictions.

Findings

First multi-wavelength counterpart detected in X-rays for a galactic FRB.

No robust detection of neutrino or gravitational wave signals associated with FRBs.

Observational progress has been made in searching for multi-messenger signals.

Abstract

Fast radio bursts are brief, highly dispersed bursts detected in the radio band, originating from cosmological distances. The only such event detected in the Milky Way galaxy, FRB 20200428DD, was associated with an X-ray burst emitted by a magnetar named SGR J1935+2154, revealing the first case of a multi-wavelength counterpart of an FRB. Counterparts in other wavelengths accompanying or following FRBs, as well as the bright emission associated with the progenitor of the FRB engine, have been proposed in various FRB models, but no robust detection has been made so far. In general, FRBs as we know them are not favorite multi-messenger emitters. Nonetheless, possible neutrino and gravitational wave emission signals associated with FRBs or FRB-like events have been discussed in the literature. Here I review these suggested multi-wavelength and multi-messenger counterparts of FRBs or FRB-like events and the observational progress in searching for these signals. The topics include multi-wavelength (X-rays, $\gamma$-rays, optical) emission and neutrino emission from FRBs within the framework of the magnetar source models and possible FRB-like events associated with gravitational waves.