利用西藏III型空气簇射阵列研究多TeV宇宙线各向异性的时间变化
高能天体物理现象
2015-05-18 v1
摘要
我们利用西藏空气簇射阵列，分析了1999年11月至2008年12月期间采集的数据中多TeV宇宙线的大尺度二维恒星时各向异性。为了探索各向异性的时间变化，数据集被划分为九个时间间隔，每个间隔跨度约一年。幅度约为0.1%的恒星时各向异性在长达九年的整个观测期内逐年保持相当稳定。这表明，由于观测期覆盖了第23太阳活动周的一半以上，TeV银河宇宙线的各向异性对太阳活动不敏感。
引用
@article{arxiv.1001.2646,
title = {On Temporal Variations of the Multi-TeV Cosmic Ray Anisotropy using the Tibet III Air Shower Array},
author = {M. Amenomori and X. J. Bi and D. Chen and S. W. Cui and Danzengluobu and L. K. Ding and X. H. Ding and C. Fan and C. F. Feng and Zhaoyang Feng and Z. Y. Feng and X. Y. Gao and Q. X. Geng and Q. B. Gou and H. W. Guo and H. H. He and M. He and K. Hibino and N. Hotta and Haibing Hu and H. B. Hu and J. Huang and Q. Huang and H. Y. Jia and L. Jiang and F. Kajino and K. Kasahara and Y. Katayose and C. Kato and K. Kawata and Labaciren and G. M. Le and A. F. Li and H. C. Li and J. Y. Li and C. Liu and Y. -Q. Lou and H. Lu and X. R. Meng and K. Mizutani and J. Mu and K. Munakata and A. Nagai and H. Nanjo and M. Nishizawa and M. Ohnishi and I. Ohta and S. Ozawa and T. Saito and T. Y. Saito and M. Sakata and T. K. Sako and M. Shibata and A. Shiomi and T. Shirai and H. Sugimoto and M. Takita and Y. H. Tan and N. Tateyama and S. Torii and H. Tsuchiya and S. Udo and B. Wang and H. Wang and Y. Wang and Y. G. Wang and H. R. Wu and L. Xue and Y. Yamamoto and C. T. Yan and X. C. Yang and S. Yasue and Z. H. Ye and G. C. Yu and A. F. Yuan and T. Yuda and H. M. Zhang and J. L. Zhang and N. J. Zhang and X. Y. Zhang and Y. Zhang and Yi Zhang and Ying Zhang and Zhaxisangzhu and X. X. Zhou},
journal= {arXiv preprint arXiv:1001.2646},
year = {2015}
}
备注
18 pages, 2 figures, accepted by The Astrophysical Journal