Astrophysics (Index)About


(first repeating FRB discovered)

FRB121102 was a fast radio burst (FRB) that has since repeated, i.e., additional FRBs have come from the same direction, the first such FRB recorded. This has created much research interest given the opportunities to locate and study the source and study the repeating FRBs in more depth. As of 6/2020, hundreds of bursts have been detected from that location, as well as a persistent radio source, apparently synchrotron radiation, and an optical source consisting of a dwarf galaxy with redshift 0.193. Also, a 157-day cycle has been discerned, consisting of some weeks of activity followed by a longer quiescent time. Theories include some involving flashes from a neutron star.

Further reading:
/Lookback Years

Referenced by page:
fast radio burst (FRB)