Chinese Researchers Identify Largest Cosmic Explosion
Chinese Researchers Identify Largest Cosmic Explosion

Chinese Researchers Identify Largest Cosmic Explosion

News summary

Researchers from the Chinese Academy of Sciences have reported the discovery of a high-energy gamma-ray line peaking at 37 million electron volts from a gamma-ray burst (GRB) designated as the Brightest of All Time (BOAT), which occurred approximately two billion years ago. The study indicates that this gamma-ray burst resulted from the collision and annihilation of matter and antimatter traveling near the speed of light, releasing immense energy into the universe. This event, observed on October 9, 2022, is characterized as the largest cosmic explosion since the Big Bang, surpassing previously recorded GRBs in brightness by a factor of 70. The analysis utilized data from both the GECAM-C and Fermi/GBM space telescopes, with the former successfully capturing high-resolution measurements despite challenges faced by other instruments. The findings are expected to provide significant insights into the physical properties and mechanisms of gamma-ray bursts, which are among the universe's most energetic phenomena.

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