Vol. 61, No. 7, 2021

Geomagnetism and Aeronomy

Origin of the Continuous Component of the Variation in the Solar and Stellar Activity Spectra

D. D. Sokoloff and P. G. Frick p. 911 abstract

Photospheric Source of White-Light Flare Energy

V. V. Zaitsev and A. V. Stepanov p. 917 abstract

Superfast Stellar Pulsations of Hot Stars

A. F. Kholtygin, A. V. Moiseeva, I. A. Yakunin, O. A. Tsiopa, N. P. Ikonnikova, M. A. Burlak and A. F. Valeev p. 923 abstract

Effect of Explosive Processes on the Sun on the Inclination Angles of Magnetic Field Lines in Sunspot Umbrae

Yu. S. Zagainova and V. G. Fainshtein p. 928 abstract

Active Longitudes at the Solar Cycle Maxima

A. P. Kramynin and F. A. Mikhalina p. 937 abstract

Differential Rotation of the Sun, Helioseismology Data, and Estimation of the Depth of Superconvection Cells

I. Zhivanovich, A. A. Solov’ev and V. I. Efremov p. 940 abstract

Studies of the Fine Structure of the Solar Photosphere at Pulkovo Observatory

L. D. Parfinenko p. 949 abstract

Relationship between the Horizontal Gradient of the Vertical Magnetic Field and the Horizontal Electric Current on the Photosphere in a Model Active Region of the Sun

A. B. Nechaeva, I. N. Sharykin, I. V. Zimovets and F. Chen p. 956 abstract

Long-Term Variations in Coronal Hole Areas and Occurrence of Magnetic Storms with Gradual Commencements

S. V. Veretenenko, M. G. Ogurtsov, V. N. Obridko and A. G. Tlatov p. 964 abstract

Interpretation of the Harmonic Structure of Jupiter Radiation in the Decameter Wave Range

V. E. Shaposhnikov, V. V. Zaitsev and T. V. Simonova p. 972 abstract

Climate Sensitivity to an Increase in the Carbon Dioxide Concentration in the Atmosphere Decreases with an Increase in the Water Vapor Concentration upon Warming

H. I. Abdussamatov p. 978 abstract

Effects of Energetic Solar Proton Events of Solar Cycle 23 on Intensity of the Stratospheric Polar Vortex

S. V. Veretenenko p. 985 abstract

The Origin of Time Delays between Sub-Terahertz and Soft X-ray Emission from Solar Flares

V. V. Smirnova, Yu. T. Tsap, A. S. Morgachev, G. G. Motorina and M. Bárta p. 993 abstract

Solar Activity Level in 1611–1613: Sunspot Groups and Areas

N. V. Zolotova and M. V. Vokhmyanin p. 1001 abstract

Variations in the Solar Magnetic Fields and their Influence on Coronal Mass Ejections and Type-II Radio Bursts

I. A. Bilenko p. 1009 abstract

Analysis of the Properties of SEP Events and Their Solar Sources Taking Into Account of the Magneto-Morphological Classification of Active Regions

L. K. Kashapova, A. V. Zhukova, R. Miteva, D. A. Zhdanov, I. N. Myagkova and N. S. Meshalkina p. 1022 abstract

Two Links between Parameters of 11-year Cycle of Solar Activity

V. G. Ivanov p. 1029 abstract

Estimation of the Energy Flux of Torsional Alfvén Waves in the Lower Solar Atmosphere Based on Measurements of the Doppler Velocities

Yu. T. Tsap, A. V. Stepanov, Yu. G. Kopylova, O. V. Khaneychuk and T. B. Goldvarg p. 1035 abstract

Features of the Sunspot Distribution over the Solar Disk in 1874–2016

E. S. Vernova, M. I. Tyasto and D. G. Baranov p. 1038 abstract

Numerical Simulation of Sub-Terahertz Emission of the Flare Chromosphere: the Event of July 4, 2012

A. S. Morgachev, Yu. T. Tsap, G. G. Motorina, V. V. Smirnova and A. S. Motorin p. 1045 abstract

Magnetic-Field Concentration and the Twisted Solar Coronal Loops

Yu. T. Tsap, A. V. Stepanov and Yu. G. Kopylova p. 1052 abstract

Solar Activity and Climate Change at the End of the Ice Age and Transition to the Holocene

I. V. Kudryavtsev and V. A. Dergachev p. 1057 abstract

Estimating the Energy of Solar and Stellar Superflares

M. M. Katsova, V. N. Obridko, D. D. Sokoloff and I. M. Livshits p. 1063 abstract

Detection of Optical Flares on the Selected G-M Dwarfs from Long-term Photometric Series

N. I. Bondar’, M. M. Katsova and A. A. Shlyapnikov p. 1069 abstract

Restoration of the Profile of Chromospheric Lines in Quiet and Active Areas of the Sun

I. A. Berezin, A. G. Tlatov and N. N. Skorbezh p. 1075 abstract

Hot Jets in the Solar Corona: Creating a Catalogue of Events Based on Multi-Instrumental Observations

T. I. Kaltman, A. G. Stupishin, S. A. Anfinogentov, V. M. Nakariakov, M. A. Loukitcheva and A. V. Shendrik p. 1083 abstract

Erratum to: Numerical Simulation of Sub-Terahertz Thermal Emission: RADYN Code

A. S. Morgachev, Yu. T. Tsap, V. V. Smirnova, G. G. Motorina and M. Bárta p. 1092 abstract

Contents

Geomagnetism and Aeronomy