{"paper":{"title":"Probe of the Solar Magnetic Field Using the \"Cosmic-Ray Shadow\" of the Sun","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. F. Li, A. F. Yuan, A. Shiomi, C. F. Feng, C. Kato, C. Liu, Danzengluobu, D. Chen, F. Kajino, G. M. Le, Haibing Hu, H. B. Hu, H. H. He, H. J. Li, H. Lu, H. M. Zhang, H. Nanjo, H. Onuma, H. R. Wu, H. Sugimoto, H. Tsuchiya, H. Wang, H. Y. Jia, I. Ohta, J. Huang, J. L. Zhang, J. Shao, J. S. Liu, K. Hakamada, K. Hibino, K. Kasahara, K. Kawata, K. Mizutani, K. Munakata, Labaciren, L. Jiang, L. K. Ding, L. M. Zhai, L. Xue, M. Amenomori, M. Nishizawa, M. Ohnishi, M. Sakata, M. Shibata, M. Takita, M. Y. Liu, N. Hotta, N. Tateyama, Q. B. Gou, S. Ozawa, S. Torii, S. Udo, S. W. Cui, S. Yasue, T. K. Sako, T. L. Chen, T. Saito, T. Shirai, T. Y. Saito, T. Yuda, W. J. Li, W. Y. Chen, X. B. Qu, X. J. Bi, X. L. Qian, X. R. Meng, X. X. Zhou (The Tibet ASgamma Collaboration), X. Y. Zhang, Y. H. Tan, Ying Zhang, Yi Zhang, Y. Katayose, Y. Q. Guo, Y. Yamamoto, Y. Zhang, Zhaoyang Feng, Zhaxisangzhu, Z. T. He, Z. Yang, Z. Y. Feng","submitted_at":"2013-06-13T02:19:49Z","abstract_excerpt":"We report on a clear solar-cycle variation of the Sun's shadow in the 10 TeV cosmic-ray flux observed by the Tibet air shower array during a full solar cycle from 1996 to 2009. In order to clarify the physical implications of the observed solar cycle variation, we develop numerical simulations of the Sun's shadow, using the Potential Field Source Surface (PFSS) model and the Current Sheet Source Surface (CSSS) model for the coronal magnetic field. We find that the intensity deficit in the simulated Sun's shadow is very sensitive to the coronal magnetic field structure, and the observed variati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3009","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}