Open AccessPeculiarities of sporadic variations in density and anisotropy of galactic cosmic rays in solar cycle 24
Author(s) -
Vladislav Grigoryev,
С. К. Герасимова,
P. Yu. Gololobov,
С. А. Стародубцев,
A. S. Zverev
Publication year - 2022
Publication title -
solar-terrestrial physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2500-0535
DOI - 10.12737/stp-81202204
Subject(s) - physics , cosmic ray , forbush decrease , neutron monitor , astrophysics , interplanetary magnetic field , solar cycle , interplanetary spaceflight , astronomy , solar cycle 24 , anisotropy , solar wind , coronal mass ejection , plasma , nuclear physics , optics
In this work, we have processed data from the global network of neutron monitors and muon telescopes by the global survey method to study variations in the density and anisotropy of galactic cosmic rays during Forbush decreases observed in solar cycle 24. The simultaneous use of two different type detectors made it possible to examine the temporal dynamics of the angular distribution of cosmic rays in two different energy intervals. Besides, we have used measurements of the Yakutsk cosmic ray spectrograph after A.I. Kuzmin to assess the energy spectrum index during large disturbances of the interplanetary medium in this cycle. Analysis of the results obtained confirms our early statements that solar activity cycle 24 features an increased level of turbulence in the interplanetary magnetic field.