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physical object > natural object > celestial body > gamma ray source |
gamma ray source comparison table |
Subject | has location | has material | has distribution | is part of | has spectra | is a kind of | has volume | has temperature | has wavelength | has velocity | has momentum | has extent | has duration | has discovery date | has energy spectrum | has mass | has frequency of occurrence | has definition | has angular momentum |
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gamma-ray burst | or center of gravity | isotropic with an increase towards the galactic center | celestial sphere | gamma ray source | gamma ray | 0.1 - 4 s | July 2, 1967 | 0.1-1.2 MeV | 5 per year | Short, intense, low-energy bursts, first recorded by the Vela satellite system on 1967 July 2. Their isotropic distribution suggests an extragalactic origin, but a galactic disk origin cannot be ruled out: there is a large increase in γ-ray flux in the direction of the galactic center. |
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