We present the precision measurement of the daily proton fluxes in cosmic rays from May 20, 2011 to October 29, 2019 (a total of 2824 days or 114 Bartels rotations) in the rigidity interval from 1 to 100 GV basedon5.5×109protons collected with the Alpha Magnetic Spectrometer aboard the International SpaceStation.The proton fluxes exhibit variations on multiple timescales. From 2014 to 2018, we observed recurrent flux variations with a period of 27 days. Shorter periods of 9 days and 13.5 days are observed in2016. The strength of all three periodicities changes with time and rigidity. The rigidity dependence of the 27-day periodicity is different from the rigidity dependences of 9-day and 13.5-day periods. Unexpectedly, the strength of 9-day and 13.5-day periodicities increases with increasing rigidities up to∼10GV and∼20GV, respectively. Then the strength of the periodicities decreases with increasing rigidity up to 100 GV.
Periodicities in the Daily Proton Fluxes from 2011 to 2019 Measured by the Alpha Magnetic Spectrometer on the International Space Station from 1 to 100 GV / Aguilar, M.; Cavasonza, L. Ali; Ambrosi, G.; Arruda, L.; Attig, N.; Barao, F.; Barrin, L.; Bartoloni, A.; Başeğmez-du Pree, S.; Battiston, R.; Behlmann, M.; Beranek, B.; Berdugo, J.; Bertucci, B.; Bindi, V.; Bollweg, K.; Borgia, B.; Boschini, M. J.; Bourquin, M.; Bueno, E. F.; Burger, J.; Burger, W. J.; Burmeister, S.; Cai, X. D.; Capell, M.; Casaus, J.; Castellini, G.; Cervelli, F.; Chang, Y. H.; Chen, G. M.; Chen, G. R.; Chen, H. S.; Chen, Y.; Cheng, L.; Chou, H. Y.; Chouridou, S.; Choutko, V.; Chung, C. H.; Clark, C.; Coignet, G.; Consolandi, C.; Contin, A.; Corti, C.; Cui, Z.; Dadzie, K.; Dass, A.; Delgado, C.; Della Torre, S.; Demirköz, M. B.; Derome, L.; Di Falco, S.; Di Felice, V.; Díaz, C.; Dimiccoli, F.; von Doetinchem, P.; Dong, F.; Donnini, F.; Duranti, M.; Egorov, A.; Eline, A.; Feng, J.; Fiandrini, E.; Fisher, P.; Formato, V.; Freeman, C.; Gámez, C.; García-López, R. J.; Gargiulo, C.; Gast, H.; Gervasi, M.; Giovacchini, F.; Gómez-Coral, D. M.; Gong, J.; Goy, C.; Grabski, V.; Grandi, D.; Graziani, M.; Haino, S.; Han, K. C.; Hashmani, R. K.; He, Z. H.; Heber, B.; Hsieh, T. H.; Hu, J. Y.; Incagli, M.; Jang, W. Y.; Jia, Yi; Jinchi, H.; Karagöz, G.; Khiali, B.; Kim, G. N.; Kirn, Th.; Konyushikhin, M.; Kounina, O.; Kounine, A.; Koutsenko, V.; Krasnopevtsev, D.; Kuhlman, A.; Kulemzin, A.; La Vacca, G.; Laudi, E.; Laurenti, G.; Lazzizzera, I.; Lebedev, A.; Lee, H. T.; Lee, S. C.; Li, J. Q.; Li, M.; Li, Q.; Li, S.; Li, J. H.; Li, Z. H.; Liang, J.; Light, C.; Lin, C. H.; Lippert, T.; Liu, J. H.; Liu, Z.; Lu, S. Q.; Lu, Y. S.; Luebelsmeyer, K.; Luo, J. Z.; Luo, Xi; Machate, F.; Mañá, C.; Marín, J.; Marquardt, J.; Martin, T.; Martínez, G.; Masi, N.; Maurin, D.; Medvedeva, T.; Menchaca-Rocha, A.; Meng, Q.; Mikhailov, V. V.; Molero, M.; Mott, P.; Mussolin, L.; Negrete, J.; Nikonov, N.; Nozzoli, F.; Oliva, A.; Orcinha, M.; Palermo, M.; Palmonari, F.; Paniccia, M.; Pashnin, A.; Pauluzzi, M.; Pensotti, S.; Phan, H. D.; Plyaskin, V.; Pohl, M.; Poluianov, S.; Qin, X.; Qu, Z. Y.; Quadrani, L.; Rancoita, P. G.; Rapin, D.; Conde, A. Reina; Robyn, E.; Rosier-Lees, S.; Rozhkov, A.; Rozza, D.; Sagdeev, R.; Schael, S.; von Dratzig, A. Schultz; Schwering, G.; Seo, E. S.; Shakfa, Z.; Shan, B. S.; Siedenburg, T.; Solano, C.; Song, J. W.; Song, X. J.; Sonnabend, R.; Strigari, L.; Su, T.; Sun, Q.; Sun, Z. T.; Tacconi, M.; Tang, X. W.; Tang, Z. C.; Tian, J.; Ting, Samuel C. C.; Ting, S. M.; Tomassetti, N.; Torsti, J.; Urban, T.; Usoskin, I.; Vagelli, V.; Vainio, R.; Valencia-Otero, M.; Valente, E.; Valtonen, E.; Vázquez Acosta, M.; Vecchi, M.; Velasco, M.; Vialle, J. P.; Wang, C. X.; Wang, L.; Wang, L. Q.; Wang, N. H.; Wang, Q. L.; Wang, S.; Wang, X.; Wang, Yu; Wang, Z. M.; Wei, J.; Weng, Z. L.; Wu, H.; Xiong, R. Q.; Xu, W.; Yan, Q.; Yang, Y.; Yashin, I. I.; Yi, H.; Yu, Y. M.; Yu, Z. Q.; Zannoni, M.; Zhang, C.; Zhang, F.; Zhang, F. Z.; Zhang, J. H.; Zhang, Z.; Zhao, F.; Zheng, C.; Zheng, Z. M.; Zhuang, H. L.; Zhukov, V.; Zichichi, A.; Zuccon, P.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 127:27(2021), pp. 271102.1-271102.8. [10.1103/PhysRevLett.127.271102]
Periodicities in the Daily Proton Fluxes from 2011 to 2019 Measured by the Alpha Magnetic Spectrometer on the International Space Station from 1 to 100 GV
Battiston, R.;Burger, J.;Dass, A.;Dimiccoli, F.;Lazzizzera, I.;Nozzoli, F.;Zuccon, P.Ultimo
2021-01-01
Abstract
We present the precision measurement of the daily proton fluxes in cosmic rays from May 20, 2011 to October 29, 2019 (a total of 2824 days or 114 Bartels rotations) in the rigidity interval from 1 to 100 GV basedon5.5×109protons collected with the Alpha Magnetic Spectrometer aboard the International SpaceStation.The proton fluxes exhibit variations on multiple timescales. From 2014 to 2018, we observed recurrent flux variations with a period of 27 days. Shorter periods of 9 days and 13.5 days are observed in2016. The strength of all three periodicities changes with time and rigidity. The rigidity dependence of the 27-day periodicity is different from the rigidity dependences of 9-day and 13.5-day periods. Unexpectedly, the strength of 9-day and 13.5-day periodicities increases with increasing rigidities up to∼10GV and∼20GV, respectively. Then the strength of the periodicities decreases with increasing rigidity up to 100 GV.| File | Dimensione | Formato | |
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