New Estimation of the Spectral Index of High-Energy Cosmic Rays as Determined by the Compton-Getting Anisotropy

The amplitude of the Compton-Getting (CG) anisotropy contains the power-law index of the cosmic-ray energy spectrum. Based on this relation and using the Tibet air shower array data, we measure the cosmic-ray spectral index to be -3.03 plus or minus 0.55 sub(stat) plus or minus

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Bibliographic Details
Published in:The Astrophysical journal 2008-01, Vol.672 (1), p.L53-L56
Main Authors: Amenomori, M, Bi, X. J, Chen, D, Cui, S. W, Danzengluobu, Ding, L. K, Ding, X. H, Fan, C, Feng, C. F, Feng, Zhaoyang, Feng, Z. Y, Gao, X. Y, Geng, Q. X, Guo, H. W, He, H. H, He, M, Hibino, K, Hotta, N, Hu, Haibing, Hu, H. B, Huang, J, Huang, Q, Jia, H. Y, Kajino, F, Kasahara, K, Katayose, Y, Kato, C, Kawata, K, Labaciren, Le, G. M, Li, A. F, Li, J. Y, Lou, Y.-Q, Lu, H, Lu, S. L, Meng, X. R, Mizutani, K, Mu, J, Munakata, K, Nagai, A, Nanjo, H, Nishizawa, M, Ohnishi, M, Ohta, I, Onuma, H, Ouchi, T, Ozawa, S, Ren, J. R, Saito, T, Saito, T. Y, Sakata, M, Sako, T. K, Shibata, M, Shiomi, A, Shirai, T, Sugimoto, H, Takita, M, Tan, Y. H, Tateyama, N, Torii, S, Tsuchiya, H, Udo, S, Wang, B, Wang, H, Wang, X, Wang, Y, Wang, Y. G, Wu, H. R, Xue, L, Yamamoto, Y, Yan, C. T, Yang, X. C, Yasue, S, Ye, Z. H, Yu, G. C, Yuan, A. F, Yuda, T, Zhang, H. M, Zhang, J. L, Zhang, N. J, Zhang, X. Y, Zhang, Y, Zhang, Yi, Zhaxisangzhu, Zhou, X. X
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
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Summary:The amplitude of the Compton-Getting (CG) anisotropy contains the power-law index of the cosmic-ray energy spectrum. Based on this relation and using the Tibet air shower array data, we measure the cosmic-ray spectral index to be -3.03 plus or minus 0.55 sub(stat) plus or minus
ISSN:1538-4357
0004-637X
1538-4357
DOI:10.1086/525526