PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
Observation of TeV gamma ray emissions from 12 UHE γ-ray Galactic sources with the LHAASO-WCDA
C. Gao* and M.Z.Z.Y. Cunfeng Feng
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Pre-published on: August 18, 2023
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The Large High Altitude Air Shower Observatory (LHAASO) reported detection of 12 ultrahigh-energy (>100TeV) gamma ray sources with a statistical significance greater than seven standard deviation by the kilometer aaray (KM2A). In total, more than 530 photons are recorded from these sources at energies above 100 TeV with the highest photon energy extending up to 1.4PeV. We here report the observations of LHAASO Water Cherenkov Detector Array (WCDA) with 508 day live time on these sources. Energy spectra and morphologies of those sources are measured in the energy range of 2-20 TeV. Combing KM2A data, a wide range of energy spectral fitting of these sources is provided.
DOI: https://doi.org/10.22323/1.444.0913
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