Speaker
Description
Fast Radio Bursts (FRBs) are bright, extra-galactic, millisecond-duration transients whose physical origin is still unknown. Luminous compact persistent radio sources (PRSs) have been found to be co-located with a subset of repeating FRBs in some cases. Studying the PRSs may provide clues about the immediate environments of the FRBs, which in turn may reveal the nature of FRB sources. However, the origin of PRSs is also unknown. This work searches for PRSs candidates towards FRBs precisely localised by ASKAP and MeerTRAP using MeerKAT telescope. Complementing this observational search, I am developing a theoretical model of a magnetar wind nebula (MWN), to simulate the spectrum and frequency-dependent surface brightness profile of the PRS as well as the evolution of the dispersion measure and rotation measure. The proposed model aims to explain the origin of faint PRSs and how they are associated with FRBs. This talk present the recent progress from the MeerKAT search and highlights ongoing and planned research directions for probing FRB environments.