Fast radio bursts and their gamma-ray or radio afterglows as Kerr-Newman black hole binaries

Understand

Fast radio bursts (FRBs) are radio transients lasting only about a few milliseconds.

• They seem to occur at cosmological distances.
• We propose that these events can be originated in the collapse of the magnetosphere of Kerr-Newman black holes (KNBHs).
• We show that the closed orbits of charged particles in the magnetosphere of these objects are unstable.