Accès ouvert déclaré
2021
preprint
Indications of a Cosmic Ray Source in the Perseus-Pisces Supercluster
Telescope Array Collaboration, T. Abu‐Zayyad, M. Allen, Y. Arai, Ryuhei Arimura, E. Barcikowski, John Belz, D. R. Bergman, S. A. Blake, I. Buckland, R. Cady, B. G. Cheon, Jyunsei Chiba, M. Chikawa, Toshihiro Fujii, Kozo Fujisue, K. Fujita, Ryota Fujiwara, M. Fukushima, R. Fukushima, G. Furlich, Noémie Globus, R. Gonzalez, W. Hanlon, Mayumi Hayashi, N. Hayashida, K. Hibino, R. Higuchi, K. Honda, D. Ikeda, T. Inadomi, Naoki Inoue, Takaaki Ishii, Hirotaka Ito, D. Ivanov, Hirokazu Iwakura, A. Iwasaki, Hyeonju Jeong, S. Jeong, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, Saori Kasami, H. Kawai, Satoshi Kawakami, S. Kawana, K. Kawata, Ivan Kharuk, E. Kido, H. B. Kim, J. H. Kim, M. H. Kim, S. -W. Kim, Yosuke Kimura, S. Kishigami, Yuto Kubota, Shinnosuke Kurisu, Vladim Kuzmin, M. Kuznetsov, Y.-J. Kwon, K. H. Lee, B. Lubsandorzhiev, Jon Paul Lundquist, K. Machida, Hiroyuki Matsumiya, T. Matsuyama, J. N. Matthews, R. Mayta, M. Minamino, K. Mukai, I. Myers, Shigehiro Nagataki, Kei Nakai, R. Nakamura, Takuji Nakamura, Yuki Nakamura, Arata Nakazawa, Eiji Nishio, T. Nonaka, Hiroshi Oda, S. Ogio, M. Ohnishi, H. Ohoka, Yuya Oku, T. Okuda, Y. Omura, M. Ono, R. Onogi, A. Oshima, S. Ozawa, I. H. Park, M. Potts, М. С. Пширков, J. Remington, D. C. Rodriguez, Г. И. Рубцов, Dongsu Ryu, H. Sagawa, Ryosuke Sahara, Y. Saito, Н. Сакаки, T. Sako, N. Sakurai, K. Sano, Kousuke Sato, T. Seki, K. Sekino, P. D. Shah, Yuma Shibasaki, F. Shibata, Norimichi Shibata, T. Shibata, Hidetoshi Shimodaira, B. K. Shin, Heungsu Shin, Daiki Shinto, J. D. Smith, P. Sokolsky, Naohiro Sone, B. T. Stokes, T. A. Stroman, Yoshinori Takagi, Y. Takahashi, M. Takamura, M. Takeda, Ryuji Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, Yuta Tanoue, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, R Tsuda, Y. Tsunesada, Y. Uchihori, S. Udo, Takafumi Uehama, F. Urban, Tony Wong, Masashi Yamamoto, K. Yamazaki, J. Yang, K. Yashiro, Fugo Yoshida, Y. Yoshioka, Yana Zhezher, Z. Zundel
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Le résumé fourni par la source
The Telescope Array Collaboration has observed an excess of events with $E \ge 10^{19.4} ~{\rm eV}$ in the data which is centered at (RA, dec) = ($19^\circ$, $35^\circ$). This is near the center of the Perseus-Pisces supercluster (PPSC). The PPSC is about $70 ~{\rm Mpc}$ distant and is the closest supercluster in the Northern Hemisphere (other than the Virgo supercluster of which we are a part). A Li-Ma oversampling analysis with $20^\circ$-radius circles indicates an excess in the arrival direction of events with a local significance of about 4 standard deviations. The probability of having such excess close to the PPSC by chance is estimated to be 3.5 standard deviations. This result indicates that a cosmic ray source likely exists in that supercluster.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
Astrophysics and Cosmic PhenomenaDark Matter and Cosmic PhenomenaScientific Research and Discoveries