Evidence of Intermediate-Scale Energy Spectrum Anisotropy of Cosmic Rays E$\geq$10$^{19.2}$ eV with the Telescope Array Surface Detector
Creators: name: Abbasi, R. U.
name: Abe, M.
name: Abu-Zayyad, T.
name: Allen, M.
name: Azuma, R.
name: Barcikowski, E.
name: Belz, J. W.
name: Bergman, D. R.
name: Blake, S. A.
name: Cady, R.
name: Cheon, B. G.
name: Chiba, J.
name: Chikawa, M.
name: Di Matteo, A.
name: Fujii, T.
name: Fujita, K.
name: Fukushima, M.
name: Furlich, G.
name: Goto, T.
name: Hanlon, W.
name: Hayashi, M.
name: Hayashi, Y.
name: Hayashida, N.
name: Hibino, K.
name: Honda, K.
name: Ikeda, D.
name: Inoue, N.
name: Ishii, T.
name: Ishimori, R.
name: Ito, H.
name: Ivanov, D.
name: Jeong, H. M.
name: Jeong, S. M.
name: Jui, C. C. H.
name: Kadota, K.
name: Kakimoto, F.
name: Kalashev, O.
name: Kasahara, K.
name: Kawai, H.
name: Kawakami, S.
name: Kawana, S.
name: Kawata, K.
name: Kido, E.
name: Kim, H. B.
name: Kim, J. H.
name: Kim, J. H.
name: Kishigami, S.
name: Kitamura, S.
name: Kitamura, Y.
name: Kuzmin, V.
name: Kuznetsov, M.
name: Kwon, Y. J.
name: Lee, K. H.
name: Lubsandorzhiev, B.
name: Lundquist, J. P.
name: Machida, K.
name: Martens, K.
name: Matsuyama, T.
name: Matthews, J. N.
name: Mayta, R.
name: Minamino, M.
name: Mukai, K.
name: Myers, I.
name: Nagasawa, K.
name: Nagataki, S.
name: Nakamura, R.
name: Nakamura, T.
name: Nonaka, T.
name: Nozato, A.
name: Oda, H.
name: Ogio, S.
name: Ogura, J.
name: Ohnishi, M.
name: Ohoka, H.
name: Okuda, T.
name: Omura, Y.
name: Ono, M.
name: Onogi, R.
name: Oshima, A.
name: Ozawa, S.
name: Park, I. H.
name: Pshirkov, M. S.
name: Rodriguez, D. C.
name: Rubtsov, G.
name: Ryu, D.
name: Sagawa, H.
name: Sahara, R.
name: Saito, K.
name: Saito, Y.
name: Sakaki, N.
name: Sakurai, N.
name: Scott, L. M.
name: Seki, T.
name: Sekino, K.
name: Shah, P. D.
name: Shibata, F.
name: Shibata, T.
name: Shimodaira, H.
name: Shin, B. K.
name: Shin, H. S.
name: Smith, J. D.
name: Sokolsky, P.
name: Stokes, B. T.
name: Stratton, S. R.
name: Stroman, T. A.
name: Suzawa, T.
name: Takagi, Y.
name: Takahashi, Y.
name: Takamura, M.
name: Takeishi, R.
name: Taketa, A.
name: Takita, M.
name: Tameda, Y.
name: Tanaka, H.
name: Tanaka, K.
name: Tanaka, M.
name: Thomas, S. B.
name: Thomson, G. B.
name: Tinyakov, P.
name: Tkachev, I.
name: Tokuno, H.
name: Tomida, T.
name: Troitsky, S.
name: Tsunesada, Y.
name: Tsutsumi, K.
name: Uchihori, Y.
name: Udo, S.
name: Urban, F.
name: Wong, T.
name: Yamamoto, M.
name: Yamane, R.
name: Yamaoka, H.
name: Yamazaki, K.
name: Yang, J.
name: Yashiro, K.
name: Yoneda, Y.
name: Yoshida, S.
name: Yoshii, H.
name: Zhezher, Y.
name: Zundel, Z.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: An intermediate-scale energy spectrum anisotropy has been found in the arrival directions of ultra-high energy cosmic rays of energies above $10^{19.2}$ eV in the northern hemisphere, using 7 years of data from the Telescope Array surface detector. A relative energy distribution test is done comparing events inside oversampled spherical caps of equal exposure, to those outside, using the Poisson likelihood ratio. The center of maximum significance is at $9^h$$16^m$, $45^{\circ}$. and has a deficit of events with energies $10^{19.2}$$\leq$$E$$