Advanced Gamma-Ray Detector to Enhance Understanding of Neutron Star Mergers

A recent review by Vladimir Lipunov, Sergey Svertilov, and Vladislav Topolev explores the potential of a new gamma-ray detector with sensitivity two orders of magnitude higher than current models. This advanced detector could identify up to a thousand neutron star mergers, even when gravitational wave (GW) antennas are inactive. The synchronous detection of these mergers by both gamma-ray and GW detectors would allow for detailed study of the physical processes during such events. Additionally, it would help determine the full gamma-ray beam pattern, including the average jet divergence angle and the real energy of the explosion. The proposed gamma detector, noted for its high sensitivity and relatively low flight weight, aims to enhance our understanding of the genesis of double relativistic stars in the universe.

Key Points:

  • Increased Sensitivity: The new gamma-ray detector is expected to be two orders of magnitude more sensitive than existing models.
  • Neutron Star Mergers: Up to a thousand neutron star mergers could be discovered, even without active GW antennas.
  • Detailed Studies: Synchronous detection by gamma-ray and GW detectors will enable detailed studies of the physical processes during mergers.
  • Gamma-Ray Beam Pattern: The new detector will help determine the full gamma-ray beam pattern, including jet divergence angles and explosion energy.
  • Understanding Star Genesis: The findings could significantly improve our understanding of the genesis of double relativistic stars.

Citation: Lipunov, V., Svertilov, S., & Topolev, V. (2024). Gamma-ray bursts at extremely small fluence. New Astronomy Reviews, 99, 101708. https://doi.org/10.1016/j.newar.2024.101708