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Measurement of the radial distribution of Cherenkov light generated by TeV γ-ray air showers

Using air showers induced by TeV γ-rays from Mrk 501, the radial distribution of Cherenkov light is investigated. The shower geometry is reconstructed from the stereoscopic shower images obtained with the telescopes of the HEGRA IACT system. With the core position known to better than 10 m, the ligh...

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Main Authors: Aharonian, Felix A. (Author) , Akhperjanian, A. G. (Author) , Barrio, J. A. (Author) , Bernlöhr, Konrad (Author) , Bojahr, H. (Author) , Contreras, J. L. (Author) , Cortina, J. (Author) , Daum, A. (Author) , Deckers, T. (Author) , Fonseca, V. (Author) , Fraß, A. (Author) , Gonzalez, J. C. (Author) , Heinzelmann, G. (Author) , Hemberger, M. (Author) , Hermann, G. (Author) , Heß, M. (Author) , Heusler, Andreas (Author) , Hofmann, Werner (Author) , Pühlhofer, Gerd (Author) , Völk, Heinrich J. (Author)
Corporate Author: HEGRA Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 3 March 1999
In: Astroparticle physics
Year: 1999, Volume: 10, Issue: 1, Pages: 21-29
ISSN:0927-6505
DOI:10.1016/S0927-6505(98)00039-5
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0927-6505(98)00039-5
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0927650598000395
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Author Notes:F.A Aharonian, A.G Akhperjanian, J.A Barrio, K Bernlöhr, H Bojahr, J.L Contreras, J Cortina, A Daum, T Deckers, V Fonseca, A Fraß, J C Gonzalez, G Heinzelmann, M Hemberger, G Hermann, M Heß, A Heusler, W Hofmann, H Hohl, I Holl, D Horns, I Ibarra, R Kankanyan, M Kestel, O Kirstein, C Köhler, A Konopelko, H Kornmayer, D Kranich, H Krawczynski, H Lampeitl, A Lindner, E Lorenz, N Magnussen, H Meyer, R Mirzoyan, A Moralejo, L Padilla, M Panter, D Petry, R Plaga, J Prahl, C Prosch, G Pühlhofer, G Rauterberg, W Rhode, A Röhring, M Samorski, D Schmele, F Schröder, W Stamm, M Ulrich, H.J Völk, B Wiebel-Sooth, C.A Wiedner, M Willmer, H Wirth
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Summary:Using air showers induced by TeV γ-rays from Mrk 501, the radial distribution of Cherenkov light is investigated. The shower geometry is reconstructed from the stereoscopic shower images obtained with the telescopes of the HEGRA IACT system. With the core position known to better than 10 m, the light yield as a function of the distance to the shower axis is derived by comparing event-by-event the image intensities measured in the different telescopes. We observe a change in the shape of the light pool with zenith angle, and a slow variation with shower energy. Data are well reproduced by Monte Carlo air shower simulations.
Item Description:Gesehen am 23.11.2020
Physical Description:Online Resource
ISSN:0927-6505
DOI:10.1016/S0927-6505(98)00039-5

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