Scientists Identify Unique Energy Peak in Record-Breaking Gamma Ray Burst

Newly discovered spectral feature in GRB221009A offers insights into matter-antimatter interactions and jet composition.

The energy peak was detected by NASA's Fermi Gamma-ray Space Telescope in October 2022.
This gamma ray burst, dubbed the 'Brightest of All Time' (BOAT), is the most powerful explosion observed in the cosmos.
The emission line, found five minutes post-eruption, persists for at least 40 seconds and peaks at 12 MeV.
Researchers suggest the peak results from electron-positron annihilation occurring at 99.9% the speed of light.
This discovery challenges previous assumptions and provides a new method to study the extreme environments of GRBs.