TY - JOUR
T1 - Solar Modulation of Cosmic Nuclei over a Solar Cycle
T2 - Results from the Alpha Magnetic Spectrometer
AU - (AMS Collaboration)
AU - Aguilar, M.
AU - Alpat, B.
AU - Ambrosi, G.
AU - Anderson, H.
AU - Arruda, L.
AU - Attig, N.
AU - Bagwell, C.
AU - Barao, F.
AU - Barbanera, M.
AU - Barrin, L.
AU - Bartoloni, A.
AU - Battiston, R.
AU - Bayyari, A.
AU - Belyaev, N.
AU - Bertucci, B.
AU - Bindi, V.
AU - Bollweg, K.
AU - Bolster, J.
AU - Borchiellini, M.
AU - Borgia, B.
AU - Boschini, M. J.
AU - Bourquin, M.
AU - Brugnoni, C.
AU - Burger, J.
AU - Burger, W. J.
AU - Burzillà, N.
AU - Cai, X. D.
AU - Capell, M.
AU - Casaus, J.
AU - Castellini, G.
AU - Cervelli, F.
AU - Chang, Y. H.
AU - Chen, G. M.
AU - Chen, G. R.
AU - Chen, H.
AU - Chen, H. S.
AU - Chen, Y.
AU - Cheng, L.
AU - Chou, H. Y.
AU - Chouridou, S.
AU - Choutko, V.
AU - Chung, C. H.
AU - Clark, C.
AU - Coignet, G.
AU - Consolandi, C.
AU - Contin, A.
AU - Corti, C.
AU - Cui, Z.
AU - Dadzie, K.
AU - Wang, Q. L.
N1 - Publisher Copyright:
© 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by CERN.
PY - 2025/2/7
Y1 - 2025/2/7
N2 - We report the properties of precision time structures of cosmic nuclei He, Li, Be, B, C, N, and O fluxes over an 11-year solar cycle from May 2011 to November 2022 in the rigidity range from 1.92 to 60.3 GV. The nuclei fluxes show similar but not identical time variations with amplitudes decreasing with increasing rigidity. In particular, below 3.64 GV the Li, Be, and B fluxes, and below 2.15 GV the C, N, and O fluxes, are significantly less affected by solar modulation than the He flux. We observe that these differences in solar modulation are linearly correlated with the differences in the spectral indices of the cosmic nuclei fluxes. This shows, in a model-independent way, that solar modulation of galactic cosmic nuclei depends on their spectral shape. In addition, solar modulation differences due to nuclei velocity dependence on the mass-to-charge ratio (A/Z) are not observed.
AB - We report the properties of precision time structures of cosmic nuclei He, Li, Be, B, C, N, and O fluxes over an 11-year solar cycle from May 2011 to November 2022 in the rigidity range from 1.92 to 60.3 GV. The nuclei fluxes show similar but not identical time variations with amplitudes decreasing with increasing rigidity. In particular, below 3.64 GV the Li, Be, and B fluxes, and below 2.15 GV the C, N, and O fluxes, are significantly less affected by solar modulation than the He flux. We observe that these differences in solar modulation are linearly correlated with the differences in the spectral indices of the cosmic nuclei fluxes. This shows, in a model-independent way, that solar modulation of galactic cosmic nuclei depends on their spectral shape. In addition, solar modulation differences due to nuclei velocity dependence on the mass-to-charge ratio (A/Z) are not observed.
UR - https://www.scopus.com/pages/publications/85217198044
U2 - 10.1103/PhysRevLett.134.051001
DO - 10.1103/PhysRevLett.134.051001
M3 - 文章
C2 - 39983188
AN - SCOPUS:85217198044
SN - 0031-9007
VL - 134
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
M1 - 051001
ER -