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TeV Gamma Ray Survey on the Direction of Fermi-LAT Pulsars with the Tibet Air Shower Array

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High-Energy Emission from Pulsars and their Systems

Abstract

We search for steady TeV γ-rays from 18 pulsars in the Fermi-LAT pulsar catalog using the Tibet air shower array. We observe 8 sources including the Crab against expected 0.41 sources at a significance of 2σ or more among the 18 pulsars. The chance probability from Poisson statistics is estimated to be 1.4×10-8.With the Crab excluded, it is estimated to be 1.8×10-7. These low chance probabilities clearly show that the Fermi pulsars have a statistically significant correlation with TeV γ-ray excesses observed by the Tibet air shower array.

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Correspondence to K. Kawata .

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© 2011 Springer-Verlag Berlin Heidelberg

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Amenomori, M. et al. (2011). TeV Gamma Ray Survey on the Direction of Fermi-LAT Pulsars with the Tibet Air Shower Array. In: Torres, D., Rea, N. (eds) High-Energy Emission from Pulsars and their Systems. Astrophysics and Space Science Proceedings. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17251-9_40

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  • DOI: https://doi.org/10.1007/978-3-642-17251-9_40

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-17250-2

  • Online ISBN: 978-3-642-17251-9

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