The first telescope of the HEGRA air Cherenkov imaging telescope array

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Abstract

In search of VHE γ ray emission from cosmic point sources a system of imaging Cherenkov telescopes is constructed at present on the Canarian island of La Palma; the first telescope has been operational since 1992. The Cherenkov light from air shower particles is collected by a 5 m2 reflector. The camera at the focus contains 37 photomultipliers which sample the images of the Cherenkov flashes. The subsequent image analysis allows the discrimination of γ ray induced events from the much more abundant charged cosmic ray induced showers. The telescope has an effective energy threshold for γ showers of about 1.5 TeV. During the first year of operation a signal from the Crab nebula was detected.

References (21)

  • P. Baillon

    Astroparticle Physics

    (1993)
  • F.A. Aharonian
  • A.M. Hillas
  • T.C. Weekes

    Space Sci. Rev.

    (1992)
  • F.A. Aharonian
  • F.A. Aharonian

    Exp. Astronomy

    (1993)
  • R. Mirzoyan
  • F. Krennrich
  • G. Vacanti

    Astrophys. J.

    (1991)
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