Higashi, Y; Kubo, H; Yoshida, T; Enomoto, R; Tanimori, T; Edwards, P G; Naito, T; Bicknell, Geoffrey; Clay, Roger W; Gunji, S; Hara, S; Hara, T
We observed the unidentified TeV gamma-ray source HESS J1804-216 with the CANGAROO-III atmospheric Cerenkov telescopes from 2006 May to July. We detected very high energy gamma rays above 600 GeV at the 10 σ level in an effective exposure of 76 hr. We ob
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