Performances of the CAT imaging telescope and some preliminary results on Mkn 180 and the Crab

The CAT imaging telesope, which uses the Atmospheric Cherenkov Technique to observe TeV gamma-ray sources, has been operating since September 1996. Located in southern France, it features a fine grained camera consisting of 546 PMT with a pixel size of 0.12 degrees. Strong gamma-ray signals from Mkn...

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Bibliographic Details
Published in:arXiv.org 1997-10
Main Authors: Barrau, A, R Bazer-Bachi, Cabot, H, Chounet, L M, Debiais, G, Degrange, B, Dezalay, J P, Djannati-Atai, A, Dumora, D, Espigat, P, Fabre, B, Fleury, P, Fontaine, G, George, R, Ghesquiere, C, Goret, P, Gouiffes, C, Grenier, I A, Iacoucci, L, S Le Bohec, Malet, I, Meynadier, C, Munz, P, Palfrey, T A, Pare, E, Pons, Y, Punch, M, Quebert, J, Ragan, K, Renault, C, Rivoal, M, Rob, L, Schovanek, P, Smith, D, Tavernet, J P, Vrana, J
Format: Article
Language:English
Subjects:
Computer simulation
Crab nebula
Gamma rays
Monte Carlo simulation
Performance enhancement
Online Access:Get full text
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Summary:The CAT imaging telesope, which uses the Atmospheric Cherenkov Technique to observe TeV gamma-ray sources, has been operating since September 1996. Located in southern France, it features a fine grained camera consisting of 546 PMT with a pixel size of 0.12 degrees. Strong gamma-ray signals from Mkn 501 above 200 GeV were detected during observations made in April 1997. The high signal/noise ratio for these data enables direct characterization of the gamma-ray images as recorded in the camera. These results are used to validate the Monte-Carlo simulations of the response of the telescope to gamma-ray showers and to improve its performances. Observational results on Mkn 180 and the Crab nebula spectrum are presented.
ISSN:2331-8422