The Arrival Direction Distribution of Extremely High Energy Cosmic Rays Observed by AGASA

Study of the arrival direction distribution plays a key role in finding sources of the Extremely High Energy Cosmic Rays (EHECR). Greisen-Zatsepin-Kuz'min (GZK) mechanism limits the propagation of EHE cosmic rays significantly and only nearby sources can contribute to the local EHECR flux. Furthermore EHECRs travel intergalactic spaces almost linearly. Hence, we expect they can be traced back to their sources. Here we report a small-sacle anisotropy of the arrival direction distribution of EHECRs observed by AGASA above 1019eV . This result strongly suggests the existence of point sources of EHECRs.

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Proceedings of International Cosmic Ray Conference

巻 28, p. 437-440, 発行日 2003-06

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The Arrival Direction Distribution of Extremely High Energy Cosmic Rays Observed by AGASA

× Teshima, Masahiro

× Takeda, Masahiro

× Chikawa, Michiyuki

× Fukushima, Masaki

× Hayashida, Naoaki

× Honda, Ken

× Inoue, Naoya

× Kadota, Kenji

× Kakimoto, Fumio

× Kamata, Kouichi

× Kawaguchi, Setsuo

× Kawakami, Saburo

× Kawasaki, Yoshiya

× Kawasumi, Norio

× Mase, Keiichi

× Mizobuchi, Tomoko

× Nagano, Motohiko

× Ohoka, Hideyuki

× Osone, Satoko

× Sakaki, Naoto

× Sakurai, Nobuyuki

× Sasaki, Makoto

× Sasano, Masahiko

× Shimizu, Hirohiko

× Shinozaki, Kenji

× Torii, Reiko

× Tsushima, Itsurou

× Uchihori, Yukio

× Yamamoto, Tokonatsu

× Yoshida, Shigeru

× Yoshii, Hisashi

× 川崎 賀也

× 榊 直人

× 内堀 幸夫

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× 川崎賀也

× 榊直人

× 内堀幸夫