Abstract
Gamma-Ray Astronomy, originated with the OSO-3, SAS-2 and COS-B satellites, has been renewed during the last three years by Compton-GRO's discovery of tens of Galactic and extra-galactic sources up to ≈ 10 GeV. Also in the last three years, a ground-based observing technique has emerged for TeV gamma rays: the identification of gamma-induced air showers via their Cerenkov emission. Extrapolating this technique down to the present limit of satellite observations has become a realistic goal, allowing fundamental questions to be tackled which would remain open until the individual spectra were extended.
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Paré, E. Gamma-Ray Astronomy: Extension beyond the GeV domain by ground-based observations. Space Sci Rev 75, 127–136 (1996). https://doi.org/10.1007/BF00195030
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DOI: https://doi.org/10.1007/BF00195030