Vol. 60, No. 7, 2020

Geomagnetism and Aeronomy

Self-Organized Criticality of Solar Magnetism

V. I. Abramenko p. 801 abstract

Heat Fluxes in Collisionless Magnetohydrodynamic Shock Waves

V. D. Kuznetsov and A. I. Osin p. 804 abstract

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 and E. P. Minenko p. 811 abstract

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

E. S. Vernova, M. I. Tyasto, D. G. Baranov and O. A. Danilova p. 816 abstract

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

A. G. Tlatov and K. A. Tlatova p. 825 abstract

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

V. L. Merzlyakov and L. I. Starkova p. 831 abstract

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 and Yu. A. Nagovitsyn p. 835 abstract

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, I. V. Kudryavtsev, Yu. A. Nagovitsyn and M. G. Ogurtsov p. 840 abstract

Solar-Flare Precursors in the Microwave Range

V. E. Abramov-Maximov and I. A. Bakunina p. 846 abstract

Signs of Preflare Situation in Solar Ultraviolet and Microwave Emission

I. A. Bakunina, V. F. Melnikov and A. S. Morgachev p. 853 abstract

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

V. G. Ivanov p. 860 abstract

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, V. I. Efremov and N. O. Miller p. 865 abstract

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 and A. G. Tlatov p. 872 abstract

24th Cycle of Solar Activity: Geoefficiency of Flares

E. A. Bruevich and G. V. Yakunina p. 876 abstract

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

N. A. Topchilo and N. G. Peterova p. 881 abstract

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

I. D. Oparin, Yu. E. Charikov, E. P. Ovchinnikova and A. N. Shabalin p. 889 abstract

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

V. M. Gubchenko p. 896 abstract

Modified 3D Model of a Facular KNOT

A. A. Solov’ev and E. A. Kirichek p. 904 abstract

The Color of Solar Corona Structures

I. S. Kim, N. L. Krusanova and M. V. Pavlov p. 909 abstract

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

V. V. Zaitsev and A. V. Stepanov p. 915 abstract

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

A. N. Shakhovskaya and I. Yu. Grigor’eva p. 921 abstract

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

G. G. Motorina, A. L. Lysenko, S. A. Anfinogentov and G. D. Fleishman p. 929 abstract

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, P. B. Dmitriev, M. G. Ogurtsov, E. M. Kruglov, V. P. Lazutkov, D. V. Skorodumov and I. I. Shishov p. 936 abstract

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

N. I. Bondar’ and M. M. Katsova p. 942 abstract

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

I. A. Bilenko p. 948 abstract

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

G. I. Vasil’ev and E. A. Bogomolov p. 958 abstract

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 and G. V. Yakunina p. 966 abstract

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

S. V. Veretenenko and M. G. Ogurtsov p. 974 abstract

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

M. I. Ryabov, A. L. Sukharev and L. I. Sobitnyak p. 982 abstract

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

E. V. Yushkov, C. R. Kamaletdinov and D. D. Sokoloff p. 989 abstract

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

V. M. Fedorov p. 993 abstract

Contents

Geomagnetism and Aeronomy