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STACEE is an atmospheric Cherenkov detector using the large mirror area of a solar research facility to obtain an energy threshold around 100 GeV. STACEE has been used to study the Crab and several AGN: Markarian 421, W Comae, H1426+428. The STACEE observing program is coordinated with the high-energy astrophysics community both by participation in multiwavelength campaigns and by follow-up observations...
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