Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer

作者：M. Aguilar, L. Ali Cavasonza, Matthew S. Allen, B. Alpat, G. Ambrosi, L. Arruda, N. Attig, F. Barão, L. Barrin, A. Bartoloni, Seth Pree, R. Battiston, M. Behlmann, B. Beischer, J. Berdugo, B. Bertucci, V. Bindi, W. de Boer, K. Bollweg, B. Borgia, M. Boschini, M. Bourquin, E. F. Bueno, J.D. Burger, W. J. Burger, S. Burmeister, Xudong Cai, M. Capell, J. Casaus, G. Castellini, F. Cervelli, Y. H. Chang, G. M. Chen, G. R. Chen, Hanze Chen, Y. Chen, Lin Cheng, H. Y. Chou, S. Chouridou, V. Choutko, C. H. Chung, C. Clark, G. Coignet, C. Consolandi, A. Contin, C. Corti, Z. Cui, S. Kokou Dadzie, C. Delgado, S. Della Torre, B. Demirköz, L. Derome, S. Di Falco, V. Di Felice, C. Díaz, F. Dimiccoli, P. von Doetinchem, Fang Dong, F. Donnini, M. Duranti, A. I. Egorov, A. Eline, J. H. Feng, E. Fiandrini, P.H. Fisher, V. Formato, C. Freeman, Yu. Galaktionov, C. Gámez, R. J. Garcı́a López, Corrado Gargiulo, H. Gast, M. Gervasi, F. Giovacchini, D. M. Gómez-Coral, J. Gong, C. Goy, Varlen Grabski, D. Grandi, M. Graziani, S. Haino, K. C. Han, R. K. Hashmani, Z. H. He, B. Heber, Timothy H. Hsieh, Jiayu Hu, M. Incagli, W. Jang, Yi Jia, H. Jinchi, K. Kanishev, B. Khiali, G. N. Kim, Th. Kirn, M. Konyushikhin, O. Kounina, A. Kounine, V. Koutsenko, A. Kuhlman, A. Kulemzin, G. La Vacca, E. Laudi, G. Laurenti, I. Lazzizzera, A. Lebedev, H. T. Lee, S. C. Lee, J. Q. Li, M. Li, Q. Li, S. Li, J. H. Li, Z. H. Li, Juncheng Liang, Christopher Light, Chao‐Hung Lin, Thomas Lippert, J. H. Liu, Zhen Liu, S. Q. Lu, Yudong Lu, K. Luebelsmeyer, Junzhou Luo, Xi Luo, Shaoyu Lyu, F. Machate, C. Mañá, J. Marín, J. Marquardt, T. Martin, G. Martı́nez, N. Masi, D. Maurin, A. Menchaca-Rocha, Q. Meng, V. V. Mikhailov, Dong-Chuan Mo, M. Molero, P. Mott, L. Mussolin, J. Negrete, N. Nikonov, F. Nozzoli, A. Oliva, M. Orcinha, M. Palermo, F. Palmonari, M. Paniccia, A. Pashnin, M. Pauluzzi, S. Pensotti, H. D. Phan, R. Piandani, V. Plyaskin, Stepan Poluianov, X. Qin, Z. H. Qu, L. Quadrani, P.G. Rancoita, D. Rapin, A. Reina Conde, E. Robyn, S. Rosier-Lees, A. Rozhkov, D. Rozza, R. Z. Sagdeev, S. Schael, A. Schulz von Dratzig, G. Schwering, E. S. Seo, Z. Shakfa, B. S. Shan, T. Siedenburg, C. Solano, Jiwei Song, Xiaojian Song, R. Sonnabend, Louis E. Strigari, T. Su, Qie Sun, Z. T. Sun, M. Tacconi, X.W. Tang, Zhi-Cheng Tang, Jie Tian, Samuel C.C. Ting, S. M. Ting, Nicola Tomassetti, J. Torsti, Cenk Tüysüz, T. Urban, Ilya Usoskin, V. Vagelli, Rami Vainio, M. Valencia-Otero, E. Valente, E. Valtonen, M. Vázquez Acosta, M. Vecchi, M. Velasco, J. P. Vialle, C. X. Wang, Lei Wang, L. Q. Wang, N. H. Wang, Q. L. Wang, S. Wang, X. Wang, Yu Wang, Z. M. Wang, Chuncheng Wei, Z. Weng, H. Wu, R. Q. Xiong, W. Xu, Qi Yan, Y. Yang, I. I. Yashin, Han Yi, Yangyi Yu, Z. Q. Yu, M. Zannoni, Cheng Zhang, F. Zhang, F. Z. Zhang, Jiachi Zhang, Z. Zhang, Fengyi Zhao, C. Zheng, Z. M. Zheng, H. L. Zhuang, V. Zhukov, A. Zichichi, N. Zimmermann, P. Zuccon · 发表于：Physical Review Letters · 年份：2021 · DOI：10.1103/physrevlett.126.041104 · 被引用次数：117 · 研究领域：Dark Matter and Cosmic Phenomena、Astrophysics and Cosmic Phenomena、Astro and Planetary Science

We report the observation of new properties of primary iron (Fe) cosmic rays in the rigidity range 2.65 GV to 3.0 TV with 0.62×10^{6} iron nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. Above 80.5 GV the rigidity dependence of the cosmic ray Fe flux is identical to the rigidity dependence of the primary cosmic ray He, C, and O fluxes, with the Fe/O flux ratio being constant at 0.155±0.006. This shows that unexpectedly Fe and He, C, and O belong to the same class of primary cosmic rays which is different from the primary cosmic rays Ne, Mg, and Si class.