Astrophysics (Index)About

ultra-high-energy gamma rays

(UHEGR)
(energetic gamma rays with more than 100 TeV photon energy)

The term ultra-high-energy gamma rays (UHEGR) is used for gamma rays with more than 100 TeV photon energy. This energy span is next after that of very-high-energy gamma rays (VHEGR) (100 GeV to 100 TeV). Observed UHEGR photons were first announced in 2019, from the Crab Nebula.


Note that prefix UHE is also used for cosmic rays but with a "minimum energy threshold" that is higher.


(EMR,spectrum,band,gamma rays)
Further reading:
https://en.wikipedia.org/wiki/Ultra-high-energy_gamma_ray
https://ui.adsabs.harvard.edu/abs/2019PhRvL.123e1101A/abstract
https://alpaca-experiment.org/gamma.html
https://ui.adsabs.harvard.edu/abs/2023ARNPS..73..341C/abstract
https://phys.org/news/2019-06-highest-energy-photons-crab-nebula.html
https://phys.org/news/2021-06-ultra-high-energy-gamma-ray-source.html
WaveLFreqPhoton
Energy
  
0pminfinfbeginultra-high-energy gamma rays
12×10-21m24×1027Hz100TeVendultra-high-energy gamma rays

Referenced by pages:
cosmic rays (CR)
very-high-energy gamma rays (VHEGR)
VHE

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