Gamma ray and neutrino event detection, illustration. Supermassive black hole (top right) emitting gamma rays and neutrinos that were detected in Sept
Gamma ray and neutrino event detection, illustration. Supermassive black hole (top right) emitting gamma rays and neutrinos that were detected in September 2017 by the Fermi Gamma-ray Space Telescope (FGST, upper left) and the IceCube Neutrino Observatory (bottom). Completed in 2010, the latter is an international high-energy neutrino observatory in the ice below the Amundsen-Scott South Pole Station. The detection area consists of strings of digital optical modules (DOM, spheres, shown below the ice) deployed at depths between 1400 and 2400 metres. Neutrinos are elementary particles that are very difficult to detect and study. The modules detect the light (Cherenkov radiation) produced when neutrinos interact with ice. The FGST, launched in 2008, was used to confirm the source of the neutrinos, from an active galaxy known as a blazar, named TXS 0506+056, billion light years from Earth in the constellation of Orion.
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Photo credit: © NASA/Fermi and Aurore Simonnet, Sonoma State University/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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