Observation of the Fermi pulsar catalog at TeV energies with the Tibet air shower experiment

Details Observation of the Fermi pulsar catalog at TeV energies with the Tibet air shower experiment Observation of the Fermi pulsar catalog at TeV energies with the Tibet air shower experiment

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011astra...7..211a&link_type=abstract

Astrophysics and Space Sciences Transactions, Volume 7, Issue 2, 2011, pp.211-215

Astronomy and Astrophysics

Astrophysics

Scientific paper

Using the Tibet-III air shower array, we search for steady TeV γ-rays from 18 pulsars in the Fermi Large Area Telescope pulsar catalog. Among them, we observe 8 sources including the Crab instead of the expected 0.41 sources at a significance of 2 σ or more excess. Under the assumption of Poisson distribution, the chance probability is estimated to be 1.4×10-8. When the Crab is excluded, it becomes 1.8×10-7. These low chance probabilities clearly show that the Fermi pulsars have a statistically significant correlations with TeV γ-ray excesses.

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