摘要：Of the three currently operating large Imaging Atmospheric Cherenkov Telescopes (IACT), the Namibia-based High Energy Stereoscopic System (H.E.S.S.) has the best access to the inner Galactic plane. Devoting 2700 hours to a survey of the Galactic plane, the H.E.S.S. Collaboration has covered the l = 250 deg to 65 deg longitude range for latitudes |b| < 3 deg, with 5 arcmin angular resolution.
