Active Atmospheric Calibration for H.E.S.S. Applied to PKS 2155-304

Brown, Anthony M.; Chadwick, Paula; Dickinson, Hugh J.; Hadjichristidis, C.; Latham, Ian J.; Le Gallou, R.; Masterson, Conor; Mccomb, T. J. L.; Nolan, S. J.; Noutsos, A.; Orford, K. J.; Rayner, S. M.; Spangler, Denise; A. Brown et al. for the H.E.S.S. Collaboration

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Active Atmospheric Calibration for H.E.S.S. Applied to PKS 2155-304

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Masterson, Conor
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Orford, K. J.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Brown, A. M., Chadwick, P., Dickinson, H. J., Hadjichristidis, C., Latham, I. J., Le Gallou, R., et al. (2005). Active Atmospheric Calibration for H.E.S.S. Applied to PKS 2155-304. In B. S. Acharya, S. Gupta, P. Jagadeesan, A. Jain, S. Karthikeyan, S. Morris, et al. (Eds.), Proceedings of the 29th International Cosmic Ray Conference (pp. 411-414). Navy Nagar, Colaba, Mumbai, MH-400005: Tata Institute of Fundamental Research.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8793-B

Abstract

Using data derived from the H.E.S.S. telescope system and the LIDAR facility on site, a method of correcting for changing atmospheric quality based on cosmic-ray trigger-rate is presented and applied to data taken on the active galactic nuclei PKS 2155-304. These data were taken during August and September 2004, when the quality of the atmosphere at the site was highly variable. Corrected and uncorrected fluxes are shown, and the method is presented as a first step towards a more complete atmospheric calibration.