In October 2022, astronomers were stunned by what was quickly dubbed the BOAT — the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA’s Fermi Gamma-ray Space Telescope reveals a feature never seen before. “A few minutes after the BOAT erupted, Fermi’s Gamma-ray Burst Monitor recorded an unusual energy peak […]
  • A_A@lemmy.world
    7·
    4 months ago

    “The team thinks the most likely source is the annihilation of electrons and their antimatter counterparts, positrons.”
    … blue shifted and mostly monochromatic.