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Concept information

astronomical technique > gamma-ray astronomy

Terme préférentiel

gamma-ray astronomy  

Définition(s)

  • Gamma-ray astronomy is the astronomical observation of gamma rays, the most energetic form of electromagnetic radiation, with photon energies above 100 keV. Radiation below 100 keV is classified as X-rays and is the subject of X-ray astronomy. In most known cases, gamma rays from solar flares and Earth's atmosphere are generated in the MeV range, but it is now known that gamma rays in the GeV range can also be generated by solar flares. It had been believed that gamma rays in the GeV range do not originate in the Solar System. As GeV gamma rays are important in the study of extra-solar, and especially extra-galactic, astronomy, new observations may complicate some prior models and findings. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Gamma-ray_astronomy)

Concept(s) générique(s)

Synonyme(s)

  • gamma astronomy
  • γ-ray astronomy

Traductions

URI

http://data.loterre.fr/ark:/67375/MDL-DVPMGCPJ-G

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