Constraining a neutron star merger origin for localized fast radio bursts

Understand

What the progenitors of fast radio bursts (FRBs) are, and whether there are multiple types of progenitors are open questions.

• The advent of localized FRBs with host galaxy redshifts allows the various emission models to be directly tested for the first time.
• Given the recent localizations of two non-repeating FRBs (FRB 180924 and FRB 190523), we discuss a selection of FRB emission models and demonstrate how we can place constraints on key model parameters like the magnetic field strength and age of the putative FRB-emitting neutron star.
• In particular, we focus on models related to compact binary merger events involving at least one neutron star, motivated by commonalities between the host galaxies of the FRBs and the hosts of such merger events/short gamma-ray bursts (SGRBs).