- high-energy gamma rays
- Engineering: HEGR
Универсальный русско-английский словарь. Академик.ру. 2011.
high-energy gamma rays
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High energy X-rays — or HEX rays are very hard X rays, with 80 keV 1000 keV typically one order of magnitude higher in energy than conventional X rays (and well into the gamma ray energies of over 120 keV). They are produced at modern synchrotron radiation sources… … Wikipedia
High Energy Stereoscopic System — or H.E.S.S. is a next generation system of Imaging Atmospheric Cherenkov Telescopes (IACT) for the investigation of cosmic gamma rays in the 100 GeV and TeV energy range. The acronym was chosen in honour of Victor Hess, who was the first to… … Wikipedia
gamma rays — gamma radiation or gamma rays noun A penetrating radiation given off by radium and other radioactive substances • • • Main Entry: ↑gamma * * * noun [plural] : powerful invisible rays that are sent out from some radioactive substances called also… … Useful english dictionary
High Energy Astronomy Observatory 3 — The last of NASA s three High Energy Astronomy Observatories, HEAO 3 was launched 20 September 1979 on an Atlas Centaur launch vehicle, into a nearly circular, 43.6 degree inclination low Earth orbit with an initial perigee of 486.4 km.The normal … Wikipedia
High Energy Astrophysical Observatory — one of a series of three U.S. satellites launched (1977 79) into orbit around the earth and equipped with instruments for studying high energy phenomena, as x rays, gamma rays, and cosmic rays. Abbr.: HEAO * * * … Universalium
High Energy Astrophysical Observatory — one of a series of three U.S. satellites launched (1977 79) into orbit around the earth and equipped with instruments for studying high energy phenomena, as x rays, gamma rays, and cosmic rays. Abbr.: HEAO … Useful english dictionary
Gamma ray — Gamma rays (denoted as gamma;) are a form of electromagnetic radiation or light emission of frequencies produced by sub atomic particle interactions, such as electron positron annihilation or radioactive decay. Gamma rays are generally… … Wikipedia
Ultra-high-energy cosmic ray — Unsolved problems in physics Why is it that some cosmic rays appear to possess energies that are theoretically too high? In high energy physics, an ultra high energy cosmic ray (UHECR) or extreme energy cosmic ray (EECR) is a cosmic ray with an… … Wikipedia
gamma-ray burster — ▪ astronomy any of a class of very distant objects responsible for intense, nonrepeating flashes of high energy gamma rays that appear unpredictably at arbitrary points in the sky at a rate of about one per day and typically last only… … Universalium
Reuven Ramaty High Energy Solar Spectroscopic Imager — (RHESSI, or more rarely Explorer 81) is the sixth mission in the line of NASA Small Explorer missions (also known as SMEX). Launched on 5 February 2002, its primary mission is to explore the basic physics of particle acceleration and explosive… … Wikipedia
Gamma-ray astronomy — is the astronomical study of the cosmos with gamma rays. Early history Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Eugene Feenberg… … Wikipedia
