A fast radio burst in a globular cluster: why is this neutron star different from (almost) all other neutron stars?

ABSTRACT Most fast radio burst (FRB) models are built from comparatively common astronomical objects: neutron stars, black holes, and supernova remnants. Yet FRB sources rare, most of these objects, found in the Galaxy, do not make FRB. Special rare circumstances may be required for objects to The recent discovery a repeating globular cluster belonging galaxy M81 suggests model involving star close binary companion, likely white dwarf; both stars binaries superabundant clusters. Magnetic interaction is plausible, though unproven, mechanism acceleration relativistic particles that radiate coherently as In such model, energy source orbital kinetic energy, limited by magnetostatic star. Double cannot observed long-lived sources, but might much shorter lived perhaps non-repeating