Fast Radio Bursts by Maximilian Wolfgang Schwarz

A Fast Radio Burst (FRB) is a radio-astronomical phenomenon of yet unknown origin. In some high-energy astrophysical process, a transient radio pulse lasting between a fraction of a millisecond up to three seconds emerges, releasing as much energy in a millisecond as the sun puts out in three days. Several FRBs have been recorded including some repeating in seemingly irregular ways, some as singular events. So far, only FRB 180916 has been detected pulsing every 16.35 days, while FRB 20191221A was the first observed signal that was periodic itself, forming a train of consecutive peaks seperated by remarkably precise intervals of 0.2 seconds. It is indicated that FRBs are emmited from a source with an extremely powerful magnetic field, most of those extragalactic. Theories about their origin range from rapidly rotating neutron stars, magnetars, black holes and compact-object mergers to extraterrestrial intelligence.