The Experimental Spectrum of Variations of Cosmic Rays in a Wide Range of Hardness According to AMS-02 Data

All reliable information on the long-term characteristics of the interplanetary medium, such as the spectrum of variations and the anisotropy and gradients of cosmic rays, have been obtained from the data of a ground-based network of detectors since its inception. However, to solve the inverse probl...

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Bibliographic Details
Published in:Cosmic research 2021-11, Vol.59 (6), p.427-432
Main Authors: Yanke, V. G., Belov, A. V., Shlyk, N. S., Kobelev, P. G., Trefilova, L. A.
Format: Article
Language:English
Subjects:
Anisotropy
Astronomy
Astrophysics and Astroparticles
Astrophysics and Cosmology
Cosmic ray showers
Cosmic rays
Hardness
Heliosphere
Helium
Interplanetary medium
Inverse problems
Magnetic fields
Nuclei (nuclear physics)
Physics
Physics and Astronomy
Polarity
Protons
Solar magnetic field
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
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Summary:All reliable information on the long-term characteristics of the interplanetary medium, such as the spectrum of variations and the anisotropy and gradients of cosmic rays, have been obtained from the data of a ground-based network of detectors since its inception. However, to solve the inverse problem, it was required to know the shape of the spectrum of variations, which until now was only given empirically. In this work, we have studied and experimentally determined the spectrum of variations of protons and helium nuclei based on precision measurements of particle fluxes up to a hardness of 60 GV outside the atmosphere on an AMS-02 magnetic spectrometer, in addition to establishing the transformation of the form of this spectrum when the polarity of the solar magnetic field is reversed. The found form of the spectrum of cosmic-ray variations will allow increasing the accuracy of the reconstructed parameters of the spectrum of variations and will form a solid basis for further studies of modulation effects in the heliosphere and related applications.
ISSN:0010-9525
1608-3075
DOI:10.1134/S0010952521060101