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Solar Quadrupole in Tensor Description

Authors
  • Shibalova, A. S.1, 2
  • Obridko, V. N.1
  • Sokolov, D. D.1, 2
  • Pipin, V. V.3
  • 1 Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences, Moscow, 142190, Russia , Moscow (Russia)
  • 2 Lomonosov Moscow State University, Moscow, 119991, Russia , Moscow (Russia)
  • 3 Institute of Solar–Terrestrial Physics, Siberian Branch, Russian Academy of Sciences, Irkutsk, 664033, Russia , Irkutsk (Russia)
Type
Published Article
Journal
Astronomy Reports
Publisher
Pleiades Publishing
Publication Date
Oct 10, 2020
Volume
64
Issue
10
Pages
855–862
Identifiers
DOI: 10.1134/S1063772920110086
Source
Springer Nature
License
Yellow

Abstract

AbstractThe cyclic variations in the quadrupole component of the solar magnetic field is studied in tensor description. The results are consistent with the classical description of the quadrupole using spherical functions, and the mathematical apparatus of tensor algebra allows one to compare the observed changes in the magnetic quadrupole and the changes predicted by the dynamo theories. In conclusion, the quadrupole properties can be adequately described by solar dynamo models that assume deviations from the dipole symmetry without the independent excitation of the quadrupole symmetry modes.

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