Fast Radio Bursts is perhaps the most interesting class of transients, that remain poorly understood. Extragalactic magnetars are likely responsible for some of the FRBs.
Precessing Flaring Magnetar as a Source of Repeating FRB 180916.J0158+65
Conversion Measure of Faraday Rotation-Conversion with Application to Fast Radio Bursts
Plasmoid Ejection by Alfvén Waves and the Fast Radio Bursts from SGR 1935+2154