Proceedings of the 29th International Cosmic Ray Conference, Vol 4: OG 2.1, 2.2 & 2.3(2005)
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摘要
Using the Tibet III air shower array data (Nov. 1999 similar to Oct. 2004) a wide Survey for point Sources of TeV gamma-ray was performed. Significnt excesses from the well known steady Source Crab Nebula and the flare type source Markarian 421 are observed, but no new source was found with Sufficiently high significance. In addition to this search we obtained the low tipper limits on the gamma-ray flux above 3 TeV and 10 TeV for the declination band 0 degree through 60 degrees.