Observation by an air-shower array in Tibet of the multi-TeV cosmic-ray anisotropy due to terrestrial orbital motion around the Sun

M. Amenomori*, S. Ayabe, S. W. Cui, Danzengluobu, L. K. Ding, X. H. Ding, C. F. Feng, Z. Y. Feng, X. Y. Gao, Q. X. Geng, H. W. Guo, H. H. He, M. He, K. Hibino, N. Hotta, Haibing Hu, H. B. Hu, J. Huang, Q. Huang, H. Y. JiaF. Kajino, K. Kasahara, Y. Katayose, C. Kato, K. Kawata, Labaciren, G. M. Le, J. Y. Li, H. Lu, S. L. Lu, X. R. Meng, K. Mizutani, S. Mori, J. Mu, K. Munakata, H. Nanjo, M. Nishizawa, M. Ohnishi, I. Ohta, H. Onuma, T. Ouchi, Shunsuke Ozawa, J. R. Ren, T. Saito, M. Sakata, T. Sasaki, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, M. Takita, Y. E. Tan, N. Tateyama, Shoji Torii, H. Tsuchiya, S. Udo, T. Utsugi, B. S. Wang, H. Wang, X. Wang, Y. G. Wang, H. R. Wu, L. Xue, Y. Yamamoto, C. T. Yan, X. C. Yang, S. Yasue, Z. H. Ye, G. C. Yu, A. F. Yuan, T. Yuda, H. M. Zhang, J. L. Zhang, N. J. Zhang, X. Y. Zhang, Y. Zhang, Zhaxisangzhu, X. X. Zhou

*この研究の対応する著者

研究成果: Article査読

40 被引用数 (Scopus)

抄録

The solar diurnal variation of the galactic cosmic-ray intensity, observed by the Tibet III air shower array, was discussed. The variations are consistent with the Compton-Getting anisotropy in the higher-energy event samples, due to the terrestrial orbital motion around the Sun. It was found that in the lower-energy event sample, variation is inconsistent with the anisotropy. This implies an additional anisotropy, which is superposed at the multi-TeV energies, such as the solar modulation effect.

本文言語English
論文番号061101
ジャーナルPhysical Review Letters
93
6
DOI
出版ステータスPublished - 2004 8月 6
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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