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First Detection of Photons with Energy beyond 100 TeV from an Astrophysical Source

Abstract:

We report on the highest energy photons from the Crab Nebula observed by the Tibet air shower array with the underground water-Cherenkov-type muon detector array. Based on the criterion of a muon number measured in an air shower, we successfully suppress 99.92% of the cosmic-ray background events with energies E>100 TeV. As a result, we observed 24 photonlike events with E>100 TeV against 5.5 background events, which corresponds to a 5.6σ statistical significance. This is the first detection of photons with E>100 TeV from an astrophysical source.

Año de publicación:

2019

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Article

    Estado:

    Acceso restringido

    Áreas de conocimiento:

      Áreas temáticas:

      • Cuerpos y fenómenos celestes específicos

      Contribuidores:

      Bao Y.W.Bao Y.W.
      Shibata M.Shibata M.
      Labaciren Labaciren
      Hotta N.Hotta N.
      Jia H.Y.Jia H.Y.
      Chen T.L.Chen T.L.
      Kasahara K.Kasahara K.
      Sakata M.Sakata M.
      Sengoku Y.Sengoku Y.
      Lu H.Lu H.
      Nakamura Y.Nakamura Y.
      Bi X.J.Bi X.J.
      Amenomori M.Amenomori M.
      Danzengluobu Danzengluobu
      Zhaxisangzhu Zhaxisangzhu
      Yuan A.F.Yuan A.F.
      Chen Y.Chen Y.
      Zhou X.X.Zhou X.X.
      Gou Q.B.Gou Q.B.
      Tsuchiya H.Tsuchiya H.
      Liu C.Liu C.
      Ding L.K.Ding L.K.
      Huang J.Huang J.
      Fang J.H.Fang J.H.
      Qu X.B.Qu X.B.
      Li H.J.Li H.J.
      Cui S.W.Cui S.W.
      Zhang H.M.Zhang H.M.
      Li W.J.Li W.J.
      Xue L.Xue L.
      Lou Y.Q.Lou Y.Q.
      Nanjo H.Nanjo H.
      Chen X.Chen X.
      Li A.F.Li A.F.
      Wu H.R.Wu H.R.
      Tan Y.H.Tan Y.H.
      Chen D.Chen D.
      Guo Y.Q.Guo Y.Q.
      Udo S.Udo S.
      Hu H.B.Hu H.B.
      T. K. SakoT. K. Sako
      Kajino F.Kajino F.
      Takita M.Takita M.
      Hu H.B.Hu H.B.
      Zhang X.Zhang X.
      Torii S.Torii S.
      Zhai L.M.Zhai L.M.
      Kato S.Kato S.
      Ohnishi M.Ohnishi M.
      Liu B.Liu B.
      Wang H.Wang H.
      Yamamoto Y.Yamamoto Y.
      Feng Z.Y.Feng Z.Y.
      Kozai M.Kozai M.
      Feng Z.Y.Feng Z.Y.
      Feng C.F.Feng C.F.
      Kato C.Kato C.
      Zhang J.L.Zhang J.L.
      Zhang X.Y.Zhang X.Y.
      Yagisawa K.Yagisawa K.
      Liu M.Y.Liu M.Y.
      Chen W.Y.Chen W.Y.
      Yang Z.Yang Z.
      Mitsui H.Mitsui H.
      Fang K.Fang K.
      Meng X.R.Meng X.R.
      Zhang Y.Zhang Y.
      Qian X.L.Qian X.L.
      He H.H.He H.H.
      Gao Q.Gao Q.
      Zhang Y.I.Zhang Y.I.
      Shiomi A.Shiomi A.
      Zhang Y.Zhang Y.
      Le G.M.Le G.M.
      Tateyama N.Tateyama N.
      Cirennima Cirennima
      Ozawa S.Ozawa S.
      Nishizawa M.Nishizawa M.
      Katayose Y.Katayose Y.
      He Z.T.He Z.T.
      Jiang L.Jiang L.
      Hibino K.Hibino K.
      Jin H.B.Jin H.B.
      Munakata K.Munakata K.
      Sugimoto H.Sugimoto H.
      Ohta I.Ohta I.
      Shao J.Shao J.
      Lin Y.H.Lin Y.H.
      Saito T.Saito T.
      Kawata K.Kawata K.
      Liu J.S.Liu J.S.