Periodicities in the Daily Proton Fluxes from 2011 to 2019 Measured by the Alpha Magnetic Spectrometer on the International Space Station from 1 to 100GV.

M Aguilar ,A Egorov ,F Dimiccoli ,A Conde ,V Plyaskin ,S Wang ,E Robyn ,J H Liu ,F Machate ,S Di Falco ,Timothy H Hsieh ,N H Wang ,Qiang Sun ,I Lazzizzera ,X Qin ,J Casaus ,Q L Wang ,L Arruda ,D Rozza ,G Laurenti ,I I Yashin ,F Nozzoli ,H D Phan ,V Grabski ,P H Fisher ,C Corti ,Z Cui ,C Consolandi ,Th Lippert ,M Behlmann ,Yao Lu ,E Valente ,J Marín ,S Schael ,T Urban ,S Pensotti ,M Paniccia ,Samuel C.c Ting ,B S Shan ,E Fiandrini ,Z T Sun ,В В Михайлов ,D Grandi ,V Di Felice ,Z H Li ,M Konyushikhin ,S Chouridou ,B Demirköz ,Xudong Cai ,H Gast ,G La Vacca ,A Menchaca‐Rocha ,Qiao Meng ,Jie Tian ,R Z Sagdeev ,D Rapin ,Z Weng ,Chao-Hung Lin ,R J García-López ,Xiaojian Song ,E S Seo ,Fang Dong ,A Lebedev ,Christopher Light ,P Zuccon ,Z M Zheng ,A Oliva ,M Zannoni ,B Borgia ,V Koutsenko ,M Graziani ,Xi Luo ,Andrew Kuhlman ,J H Li ,S Della Torre ,R Sonnabend ,N Attig ,Jiahui Wei ,C Zheng ,Q Li ,Stepan Poluianov ,Jiayu Hu ,C Gargiulo ,M Gervasi ,A Zichichi ,Sönke Burmeister ,S M Ting ,A Pashnin ,C Delgado ,Amala Dass ,J Berdugo ,T Siedenburg ,J Marquardt ,E F Bueno ,N Masi ,D M Gómez-Coral ,Alessandro Bartoloni ,Mónica Vázquez Acosta ,Lin Cheng ,Z Shakfa ,A Kounine ,S Q Lu ,M Orcinha ,C X Wang ,T Kirn ,N Nikonov ,Zhicheng Tang ,Lidia Strigari ,Junzhou Luo ,C Mañá ,Thierry Martin ,M Molero ,L Quadrani ,P Mott ,E Laudi ,B Bertucci ,F Barão ,G N Kim ,T Medvedeva ,Qi Yan ,Mayda Velasco ,F Z Zhang ,C H Chung ,Yi Han ,L Derome ,F Palmonari ,M Tacconi ,J Torsti ,C Solano ,Yi Jia ,W Y Jang ,L Mussolin ,D Maurin ,C Gámez ,S C Lee ,Y Yang ,C H Douglas Clark ,B Beranek ,Ilya Usoskin ,B Khiali ,L Q Wang ,G R Chen ,F Cervelli ,F Donnini ,Zhao-Huan Yu ,A Rozhkov ,J Gong ,A Schultz Von Dratzig ,K Han ,H Jinchi ,B Heber ,Э Валтонен ,M Duranti ,R K Hashmani ,Y Chen ,G Castellini ,Yu Wang ,M Incagli ,Juncheng Liang ,K Luebelsmeyer ,F Giovacchini ,H T Lee ,M Boschini ,Fei Zhao ,J H Zhang ,M Pauluzzi ,H L Zhuang ,J H Feng ,K Bollweg ,L Ali Cavasonza ,C Zhang ,Z Liu ,P G Rancoita ,X Wang ,W J Burger ,M Valencia-Otero ,H Y Chou ,Z H He ,R Battiston ,X Tang ,D Krasnopevtsev ,V Choutko ,M Capell ,Nicola Tomassetti ,V Bindi ,H S Chen ,C Díaz ,C Goy ,G Ambrosi ,F Zhang ,C Freeman ,G M Chen ,S Rosier‐Lees ,G Martìnez ,J D Negrete ,Rami Vainio ,K Dadzie ,Z Y Qu ,G Coignet ,A Kulemzin ,L Wang ,A Eline ,G Karagöz ,Seth Pree ,P Von Doetinchem ,W Xu ,M Pohl ,В Жуков ,R Q Xiong ,H R Wu ,O Kounina ,L Barrin ,M Li ,S Li ,G Schwering ,J P Vialle ,Z M Wang ,Jiwei Song ,Z Zhang ,Yangyi Yu ,M Palermo ,S Haino ,M Vecchi ,J D Burger ,T Su ,J Q Li ,A Contin ,M Bourquin ,Y H Chang ,V Formato ,V Vagelli ,Null Author_Id

doi:10.1103/physrevlett.127.271102

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 2824days or 114 Bartels rotations) in the rigidity interval from 1 to 100GV based on 5.5×10^{9} protons collected with the Alpha Magnetic Spectrometer aboard the International Space Station. The proton fluxes exhibit variations on multiple timescales. From 2014 to 2018, we observed recurrent flux variations with a period of 27days. Shorter periods of 9days and 13.5days are observed in 2016. 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 ∼10 GV and ∼20 GV, respectively. Then the strength of the periodicities decreases with increasing rigidity up to 100GV.

Highlights

12IPST, University of Maryland, College Park, Maryland 20742, USA 13CHEP, Kyungpook National University, 41566 Daegu, Korea 14CNR–IROE, 50125 Firenze, Italy
100 GV based on 5.5 × 109 protons collected with the
The rigidity dependence of the 27-day periodicity is different from the rigidity dependences of 9-day

Summary

Published by the American Physical Society

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 based on 5.5 × 109 protons collected with the Alpha Magnetic Spectrometer aboard the International Space Station. [11], generally concluded that the power of the periodicity decreases with increasing rigidity This formed the paradigm over the AMS rigidity range (1 to 100 GV) that the strength of the 27-day (and 13.5-day, 9-day) periodicities steadily decreases with increasing rigidity of cosmic rays, differently in solar maximum and minimum [16]. The Alpha Magnetic Spectrometer (AMS) has reported the time dependence of proton and helium fluxes on the timescale of Bartels rotations (BR: 27 days) [17]. Data analysis.—The daily isotropic flux Φji in the ith rigidity bin ðRi; Ri þ ΔRiÞ and jth day is given by

In this

Normalized Power