The highest-energy gamma-ray energy spectrum has been released by China’s cosmic ray observatory
On Thursday, November 16, 2023, China’s Large High Altitude Air Shower Observatory (LHAASO) released the energy spectrum for the highest-energy gamma-ray radiation from the brightest gamma-ray burst (GRB) observed to date.
The GRB, which occurred on October 9, 2022, was designated GRB 221009A. It was detected by LHAASO and other observatories around the world, and it produced the highest energy gamma rays ever recorded from a GRB.
The energy spectrum released by LHAASO shows that the gamma rays from GRB 221009A extended to energies of at least 0.1 trillion electron volts (TeV). This is significantly higher than the energy of the gamma rays from any previously observed GRB.
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The release of the energy spectrum is a major breakthrough in our understanding of GRBs. It provides new insights into the mechanisms that produce these powerful explosions. And it could help us to identify GRBs that are even more energetic than GRB 221009A.
LHAASO is located at the Yangbajing Cosmic Ray Laboratory in the Sichuan Province of China. It is the largest and most sensitive cosmic ray observatory in the world. LHAASO is designed to study the highest-energy cosmic rays. Which are particles that can travel billions of light-years through the universe.
The release of the energy spectrum for the highest-energy gamma ray is a significant achievement for LHAASO and for the Chinese scientific community. It is a testament to the power of LHAASO to make new discoveries about the universe.
