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Conference Paper

Observations of the Crab nebula with H.E.S.S.

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

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Benbow,  Wystan
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Van Eldik,  Christopher
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Masterson, C., Benbow, W., & Van Eldik, C. (2005). Observations of the Crab nebula with H.E.S.S. 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. 143-146). Navy Nagar, Colaba, Mumbai, MH-400005: Tata Institute of Fundamental Research.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8783-F
Abstract
The H.E.S.S. stereoscopic Cherenkov telescope system observed the Crab nebula in January-February and October-November 2004 with the complete four telescope array. The data, taken at large zenith angles, show a clear signal with a significance in excess of 100 standard deviations and serve to verify the performance and calibration of the instrument. The energy spectrum of γ-ray emission from the Crab nebula is measured and is found to follow a straight power law, given by dN/dE =2.86 ± 0.06(stat) ± 0.57(sys) x 10-11 E-2.67±0.03(stat)±0.1(sys)cm-2s-1 TeV-1 between 440 GeV and 10 TeV. The position of the source is fitted and compared with X-ray observations.