Laurent, Philippe APC Laboratory, Paris, France.
- Astronomical limitations
- Instrumental limitations
- Detection of gamma-ray photons
- Low-energy gamma-ray telescopes
- High-energy gamma-ray telescopes
- Very high energy gamma-ray telescopes
- Stellar Sources
- Neutron stars and stellar black holes
- Other Galactic Sources
- Cosmic-ray-induced interstellar emission
- Localized sources
- Interstellar line emissions
- Extragalactic Gamma-Ray Sources
- Active galactic nuclei
- Cosmic background radiation
- Links to Primary Literature
- Additional Readings
The study of gamma rays of cosmic origin. This vast spectral domain extends from an energy of 0.01 MeV (wavelength of 10−10 m), the adopted boundary between x-ray and gamma-ray photons, to 1011 MeV (10−23 m), an experimental barrier imposed by the extreme scarcity of ultrahigh-energy photons. See also: Gamma rays
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