UKZN astronomers discover mysterious magnetised radio burst with the Green Bank Telescope

A group of astronomers, including ACRU members Jonathan Sievers, Tabhitha Voytek, and PhD student Apratim Ganguly, have discovered a fast radio burst (FRB) using the Green Bank Telescope in West Virginia. Only 16 of these events, which last for only milliseconds, have been found to date. This is the first polarised FRB to be discovered, which indicates that the burst came from a dense, magnetised region: possibly a supernova or star forming nebula. The results are published in Nature.

For more on this story, see the press releases by NRAO and SKA South Africa.

Artist impression of a Fast Radio Burst (FRB) reaching Earth. The colors represent the burst arriving at different radio wavelengths, with long wavelengths (red) arriving several seconds after short wavelengths (blue). This delay is called dispersion and occurs when radio waves travel through cosmic plasma. Credit: Jingchuan Yu, Beijing Planetarium

Artist impression of a Fast Radio Burst (FRB) reaching Earth. The colors represent the burst arriving at different radio wavelengths, with long wavelengths (red) arriving several seconds after short wavelengths (blue). This delay is called dispersion and occurs when radio waves travel through cosmic plasma. Credit: Jingchuan Yu, Beijing Planetarium