Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q622752> ?p ?o }
- Q622752 subject Q6073970.
- Q622752 subject Q6306516.
- Q622752 abstract "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.Gamma rays in the MeV range are generated in solar flares (and even in the Earth's atmosphere), but gamma rays in the GeV range do not originate in the Solar System and are important in the study of extrasolar, and especially extra-galactic astronomy. The mechanisms emitting gamma rays are diverse, mostly identical with those emitting X-rays but at higher energies, including electron-positron annihilation, the Inverse Compton Effect, and in some cases also the decay of radioactive material (gamma decay) in space reflecting extreme events such as supernovae and hypernovae, and the behaviour of matter under extreme conditions, as in pulsars and blazars. The highest photon energies measured to date are in the TeV range, the record being held by the Crab Pulsar in 2004, yielding photons with as much as 80 TeV.".
- Q622752 thumbnail Fermi_Gamma-ray_Space_Telescope_3_years_of_observations_(energies_larger_than_1_GeV).jpg?width=300.
- Q622752 wikiPageExternalLink tevcat.uchicago.edu.
- Q622752 wikiPageExternalLink hete2.html.
- Q622752 wikiPageExternalLink history.
- Q622752 wikiPageExternalLink integral.html.
- Q622752 wikiPageExternalLink magic.mppmu.mpg.de.
- Q622752 wikiPageExternalLink apsd.
- Q622752 wikiPageExternalLink gammalib.
- Q622752 wikiPageExternalLink swift.gsfc.nasa.gov.
- Q622752 wikiPageExternalLink veritas.sao.arizona.edu.
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- Q622752 type Thing.
- Q622752 comment "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.Gamma rays in the MeV range are generated in solar flares (and even in the Earth's atmosphere), but gamma rays in the GeV range do not originate in the Solar System and are important in the study of extrasolar, and especially extra-galactic astronomy.".