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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| 2041-8213_aba0bc.pdf | 498.75 kB | Adobe PDF | 見る/開く |
| タイトル: | Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment |
| 著者: | Abbasi, R. U. Abe, M. Abu-Zayyad, T. Allen, M. Azuma, R. Barcikowski, E. Belz, J. W. Bergman, D. R. Blake, S. A. Cady, R. Cheon, B. G. Chiba, J. Chikawa, M. Fujii, T. Fujisue, K. Fujita, K. Fujiwara, R. Fukushima, M. Furlich, G. Hanlon, W. Hayashi, M. Hayashida, N. Hibino, K. Higuchi, R. Honda, K. Ikeda, D. Inadomi, T. Inoue, N. Ishii, T. Ishimori, R. Ito, H. Ivanov, D. Iwakura, H. Jeong, H. M. Jeong, S. Jui, C. C. H. Kadota, K. Kakimoto, F. Kalashev, O. Kasahara, K. Kasami, S. Kawai, H. Kawakami, S. Kawana, S. Kawata, K. Kido, E. Kim, H. B. Kim, J. H. Kim, J. H. Kim, M. H. Kim, S. W. Kishigami, S. Kuzmin, V. Kuznetsov, M. Kwon, Y. J. Lee, K. H. Lubsandorzhiev, B. Lundquist, J. P. Machida, K. Matsumiya, H. Matsuyama, T. Matteo, A. di Matthews, J. N. Mayta, R. Minamino, M. Mukai, K. Myers, I. Nagataki, S. Nakai, K. Nakamura, R. Nakamura, T. Nakamura, Y. Nakamura, Y. Nonaka, T. Oda, H. Ogio, S. Ohnishi, M. Ohoka, H. Oku, Y. Okuda, T. Omura, Y. Ono, M. Onogi, R. Oshima, A. Ozawa, S. Park, I. H. Pshirkov, M. S. Remington, J. Rodriguez, D. C. Rubtsov, G. Ryu, D. Sagawa, H. Sahara, R. Saito, Y. Sakaki, N. Sako, T. Sakurai, N. Sano, K. Seki, T. Sekino, K. Shah, P. D. Shibata, F. Shibata, T. Shimodaira, H. Shin, B. K. Shin, H. S. Smith, J. D. Sokolsky, P. Sone, N. Stokes, B. T. Stroman, T. A. Suzawa, T. Takagi, Y. Takahashi, Y. Takamura, M. Takeda, M. Takeishi, R. Taketa, A. Takita, M. Tameda, Y. Tanaka, H. Tanaka, K. Tanaka, M. Tanoue, Y. Thomas, S. B. Thomson, G. B. Tinyakov, P. Tkachev, I. Tokuno, H. Tomida, T. Troitsky, S. Tsunesada, Y. Uchihori, Y. Udo, S. Uehama, T. Urban, F. Wong, T. Yada, K. Yamamoto, M. Yamazaki, K. Yang, J. Yashiro, K. Yosei, M. Zhezher, Y. Zundel, Z. |
| 著者名の別形: | 藤井, 俊博 |
| キーワード: | Cosmic rays Ultra-high-energy cosmic radiation Cosmic ray sources Cosmic ray showers Cosmic ray detectors Cosmic ray astronomy Extragalactic astronomy Extragalactic magnetic fields |
| 発行日: | 1-Aug-2020 |
| 出版者: | American Astronomical Society |
| 誌名: | The Astrophysical Journal Letters |
| 巻: | 898 |
| 号: | 2 |
| 論文番号: | L28 |
| 抄録: | Motivated by the detection of a significant dipole structure in the arrival directions of ultra-high-energy cosmic rays above 8 EeV reported by the Pierre Auger Observatory (Auger), we search for a large-scale anisotropy using data collected with the surface detector array of the Telescope Array Experiment (TA). With 11 yr of TA data, a dipole structure in a projection of the R.A. is fitted with an amplitude of 3.3% ± 1.9% and a phase of 131° ± 33°. The corresponding 99% confidence-level upper limit on the amplitude is 7.3%. At the current level of statistics, the fitted result is compatible with both an isotropic distribution and the dipole structure reported by Auger. |
| 記述: | 北半球最高感度で極高エネルギー宇宙線の「大角度異方性」を探索 --観測装置の4倍拡張計画によりさらなる高感度測定へ--. 京都大学プレスリリース. 2020-07-28. |
| 著作権等: | This is the Accepted Manuscript version of an article accepted for publication in The Astrophysical Journal Letters. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.3847/2041-8213/aba0bc. The full-text file will be made open to the public on 27 July 2021 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
| URI: | http://hdl.handle.net/2433/253550 |
| DOI(出版社版): | 10.3847/2041-8213/aba0bc |
| 関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2020-07-28-0 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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