1. Self-Organized Criticality of Solar Magnetism

   • V. I. Abramenko

   OriginalPaper 21 December 2020 Pages: 801 - 803

2. Heat Fluxes in Collisionless Magnetohydrodynamic Shock Waves

   • V. D. Kuznetsov
   • A. I. Osin

   OriginalPaper 21 December 2020 Pages: 804 - 810

   

3. Calculation of the Main Parameters of a Magnetic Flux Tube within the Model of Cylindrically Symmetric Equilibria of Two-Component Plasma

   • Z. Y. Turakulov
   • N. Karachik
   • E. P. Minenko

   OriginalPaper 21 December 2020 Pages: 811 - 815

   

4. Asymmetry of Sunspot Distribution in Solar Cycles 12–24 and the Gnevyshev–Ohl Rule

   • E. S. Vernova
   • M. I. Tyasto
   • O. A. Danilova

   OriginalPaper 21 December 2020 Pages: 816 - 824

   

5. Polar and Low-Latitude Faculae in Activity Cycles 23–24

   • A. G. Tlatov
   • K. A. Tlatova

   OriginalPaper 21 December 2020 Pages: 825 - 830

   

6. Manifestations in the Solar Corona of the Process of Magnetic-Field Generation

   • V. L. Merzlyakov
   • L. I. Starkova

   OriginalPaper 21 December 2020 Pages: 831 - 834

   

7. Periods of Extremely High Rates of the Production of Cosmogenic ¹⁴C and Temperature Variation According to Data on the ⁴⁰Ar Content in the Ice Layers for the Last 4000 Years

   • V. A. Dergachev
   • I. V. Kudryavtsev
   • Yu. A. Nagovitsyn

   OriginalPaper 21 December 2020 Pages: 835 - 839

   

8. Radiocarbon Data from the Late 18th Century as a Reflection of Solar Activity Variation, Natural Climate Change, and Anthropogenic Activity

   • A. I. Larionova
   • V. A. Dergachev
   • M. G. Ogurtsov

   OriginalPaper 21 December 2020 Pages: 840 - 845

   

9. Solar-Flare Precursors in the Microwave Range

   • V. E. Abramov-Maximov
   • I. A. Bakunina

   OriginalPaper 21 December 2020 Pages: 846 - 852

   

10. Signs of Preflare Situation in Solar Ultraviolet and Microwave Emission

    • I. A. Bakunina
    • V. F. Melnikov
    • A. S. Morgachev

    OriginalPaper 21 December 2020 Pages: 853 - 859

    

11. Anomalies of Shape of 11-year Solar Cycle in Sunspot Number Series

    • V. G. Ivanov

    OriginalPaper 21 December 2020 Pages: 860 - 864

    

12. Relationship of the Magnetic-Field Strength and the Brightness of the Sunspot Umbra and the Center of a Facular Knot

    • I. Zhivanovich
    • A. A. Solov’ev
    • N. O. Miller

    OriginalPaper 21 December 2020 Pages: 865 - 871

    

13. Comparative Analysis of Terrestrial and Satellite Observations of Photospheric Magnetic Field in an Appendix to Simulation of Parameters of Coronal Holes and Solar Wind

    • I. A. Berezin
    • A. G. Tlatov

    OriginalPaper 21 December 2020 Pages: 872 - 875

    

14. 24th Cycle of Solar Activity: Geoefficiency of Flares

    • E. A. Bruevich
    • G. V. Yakunina

    OriginalPaper 21 December 2020 Pages: 876 - 880

    

15. Tilt Angle of the Magnetic-Field Axis of Sunspots from Microwave Observations: Method and Measurement Results

    • N. A. Topchilo
    • N. G. Peterova

    OriginalPaper 21 December 2020 Pages: 881 - 888

    

16. Electron Energy Spectra and e–e Bremsstrahlung from Anisotropic Electron Distributions in Extreme Solar Flares

    • I. D. Oparin
    • Yu. E. Charikov
    • A. N. Shabalin

    OriginalPaper 21 December 2020 Pages: 889 - 895

    

17. Source of Electromagnetic Radiation in Corona and Impedance of the Stationary Magnetic Reconnection Area

    • V. M. Gubchenko

    OriginalPaper 21 December 2020 Pages: 896 - 903

    

18. Modified 3D Model of a Facular KNOT

    • A. A. Solov’ev
    • E. A. Kirichek

    OriginalPaper 21 December 2020 Pages: 904 - 908

    

19. The Color of Solar Corona Structures

    • I. S. Kim
    • N. L. Krusanova
    • M. V. Pavlov

    OriginalPaper 21 December 2020 Pages: 909 - 914

    

20. Evolution of Electric Current and Resistance in the Flare Loop in the Course of Loop Shrinkage

    • V. V. Zaitsev
    • A. V. Stepanov

    OriginalPaper 21 December 2020 Pages: 915 - 920

    

21. Study of Long-Duration Flares and Associated Chromospheric and Coronal Ejections in Solar Cycles 23 and 24

    • A. N. Shakhovskaya
    • I. Yu. Grigor’eva

    OriginalPaper 21 December 2020 Pages: 921 - 928

    

22. Energetics of X-Class Flares at the Minima of 22, 23, and 24 Solar Cycles

    • G. G. Motorina
    • A. L. Lysenko
    • G. D. Fleishman

    OriginalPaper 21 December 2020 Pages: 929 - 935

    

23. Characteristics of Soft X-Ray Radiation of the Solar Active Region NOAA 1024 Registered by the PINGVIN-M Device in July 2009

    • M. I. Savchenko
    • P. V. Vatagin
    • I. I. Shishov

    OriginalPaper 21 December 2020 Pages: 936 - 941

    

24. Long-term Activity in Photospheres of Low-mass Stars with Strong Magnetic Fields

    • N. I. Bondar’
    • M. M. Katsova

    OriginalPaper 21 December 2020 Pages: 942 - 947

    

25. Influence of Cycle Variations in the Global Solar Magnetic Field on Characteristics of the Interplanetary Plasma

    • I. A. Bilenko

    OriginalPaper 21 December 2020 Pages: 948 - 957

    

26. Gamma Rays Generated in Nuclear Interactions of Protons Accelerated during Solar Flares

    • G. I. Vasil’ev
    • E. A. Bogomolov

    OriginalPaper 21 December 2020 Pages: 958 - 965

    

27. Solar-Flux Variation in Helium Lines According to SDO/EVE Data in the 24th Cycle and the Forecast for Different Levels of Solar Activity. Lyman Decrements of Hydrogen and Helium Lines

    • E. A. Bruevich
    • T. V. Kazachevskaya
    • G. V. Yakunina

    OriginalPaper 21 December 2020 Pages: 966 - 973

    

28. Influence of Solar-Geophysical Factors on the State of the Stratospheric Polar Vortex

    • S. V. Veretenenko
    • M. G. Ogurtsov

    OriginalPaper 21 December 2020 Pages: 974 - 981

    

29. Properties of the Variability of the Solar Constant as an Index of Solar Activity

    • M. I. Ryabov
    • A. L. Sukharev
    • L. I. Sobitnyak

    OriginalPaper 21 December 2020 Pages: 982 - 988

    

30. Path Integral Method in the Mean-field Model for the Magnetic Vector Potential

    • E. V. Yushkov
    • C. R. Kamaletdinov
    • D. D. Sokoloff

    OriginalPaper 21 December 2020 Pages: 989 - 992

31. Features of the Earth’s Solar Climate Changes in the Present Epoch

    • V. M. Fedorov

    OriginalPaper 21 December 2020 Pages: 993 - 998