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Observation of the Crab Nebula gamma-ray emission above 220-GeV by the CAT Cherenkov imaging telescope.

Abstract : The CAT imaging telescope, recently built on the site of the former solar plant Themis (French Pyrenees), observed gamma-rays from the Crab nebula from October 1996 to March 1997. This steady source, often considered as the standard candle of very-high-energy gamma-ray astronomy, is used as a test-beam to probe the performances of the new telescope, particularly its energy threshold (220 GeV at 20 degrees zenith angle) and the stability of its response. Due to the fine-grain camera, an accurate analysis of the longitudinal profiles of shower images is performed, yielding the source position in two dimensions for each individual shower.
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Contributor : A. Barrau <>
Submitted on : Tuesday, February 24, 2009 - 2:07:16 PM
Last modification on : Thursday, November 19, 2020 - 12:58:50 PM

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A. Barrau, R. Bazer-Bachi, H. Cabot, L.M. Chounet, G. Debiais, et al.. Observation of the Crab Nebula gamma-ray emission above 220-GeV by the CAT Cherenkov imaging telescope.. 25th ICRC Durban, Jul 1997, Durban, South Africa. ⟨in2p3-00363771⟩

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