
arXiv: astro-ph/0401122
10 pages, 12 figures, to appear as Plenary Paper, Proceedings of the Eigth International Workshop on Topics in Astroparticle and Underground Physics (TAUP2003), University of Washington, Seattle, USA, 5-9 September 2003. High quality versions of the manuscript (ps-file) and of figures 2 and 12 can be found at http://edoc.mpg.de/60181. Replacement corrects typos, adds reference
The physics results of high energy gamma-ray astronomy are reported, emphasizing recent achievements with ground-based detectors. This includes some of the instrumental developments and latest projects. The fundamental contribution of the field to the question of Cosmic Ray origin is highlighted.
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
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