Astrophysics (Index)About

VHE

(very-high-energy)
(100 GeV or more)

The adjective VHE (for very-high-energy) is used for gamma rays with rather high energy photons, generally meaning 100 GeV or more, very-high-energy gamma rays (VHEGR). The term VHE gamma ray astronomy is used for their observation and study. Similarly, the term UHE for ultra-high-energy is used for gamma-ray photon energies beyond 100 TeV, ultra-high-energy gamma rays (UHEGR).


The adjective UHE is also used cosmic rays, but with a higher threshold than for gamma rays (I've seen two different cosmic ray thresholds, but both are higher). I haven't found VHE used for cosmic rays, but it wouldn't surprise me and I wouldn't assume the same threshold.


(physics,gamma rays)
Further reading:
https://en.wikipedia.org/wiki/Very-high-energy_gamma_ray
https://en.wikipedia.org/wiki/Ultra-high-energy_gamma_ray
https://ui.adsabs.harvard.edu/abs/1994ApJ...423L...5A/abstract
https://ui.adsabs.harvard.edu/abs/2012EPJH...37..459L/abstract
http://english.ihep.cas.cn/lhaaso/se/vhe/202110/t20211026_286769.html
https://veritas.sao.arizona.edu/the-science-of-veritas/introduction-to-vhe-gamma-ray-astrophysics

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

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