Труды XXVI Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2022, 3-7 октября 2022

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Труды XXVI Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2022, 3-7 октября 2022

СПб. : Главная (Пулковская) астрономическая обсерватория РАН, 2022.

Editor-in-chief: А. В. Степанов, Ю. А. Наговицын

The book contains reports presented at the XXVI All-Russian Annual Conference on Solar Physics "Solar and Solar-Terrestrial Physics - 2022" (October 3-7, 2022, GAO RAS, St. Petersburg). The conference was held by the Main (Pulkovo) Astronomical Observatory of the Russian Academy of Sciences with the support of the section "Sun" of the Scientific Council for Astronomy of the Russian Academy of Sciences and the section "Plasma Processes in the Magnetospheres of Planets, Atmospheres of the Sun and Stars" of the Scientific Council "Sun-Earth". The topics of the conference included a wide range of issues on the physics of solar activity and solar-terrestrial relations.

Особенности корональных магнитных структур в бессиловом приближении для активных областей со вспышками рентгеновского класса М, сопровождающимися и не сопровождающимися корональными выбросами масс

И. А. Бакунина, В.Ф. М., В.Е. А., В кн.: Труды XXVI Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2022, 3-7 октября 2022.: СПб.: Главная (Пулковская) астрономическая обсерватория РАН, 2022. С. 17–20.

Reconstruction of the magnetic field in a nonlinear force-free approximation based on SDO/HMI vector magnetograms for X-ray class M flares, some of which were accompanied by coronal mass ejections (CME), allowed to reveal different stages of the formation of magnetic ropes in the flare region. Based on SDO/HMI observations, as well as on the Nobeyama ...

Added: February 11, 2023

Предвспышечные флуктуации микроволнового излучения активных областей

Абрамов-Максимов В. Е., Bakunina I. A., В кн.: Труды XXVI Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2022, 3-7 октября 2022.: СПб.: Главная (Пулковская) астрономическая обсерватория РАН, 2022. С. 9–12.

Added: February 11, 2023

Research target: Physics

Language: Russian

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Keywords: Sun Солнце солнечно-земные связи solar-terrestrial connections

Труды XXVI Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2022, 3-7 октября 2022

Plasmonic Au-Assisted g-C3N4/CeO2 Heterojunction for Enhanced Photocatalytic Breakdown of Organic Pollutants

The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 18 P. 5386–5394

We demonstrate and rationalize the effect of Au nanoparticles (NPs) on the hierarchical g-C3N4/CeO2 heterojunction. g-C3N4/CeO2 decorated with monodispersed plasmonic Au NPs was synthesized. Detailed analyses showed that CeO2 nanocubes and monodispersed Au NPs were evenly distributed over the 2D g-C3N4 surface, forming a robust interface enriched with abundant active sites. The structure enabled efficient separation of photogenerated charge ...

Added: May 16, 2026

The origin of enhanced photocatalytic performance in titanium dioxide via niobium doping: From experimental assessments to DFT insights

Das A., Paul R., Sharma N. et al., Colloids and Surfaces A: Physicochemical and Engineering Aspects 2026 Vol. 728 P. 138830

Niobium-doped TiO2 (Nb-TiO2), demonstrates dual functionality as an efficient photocatalyst for dye degradation and a promising photoelectrocatalyst for water oxidation. Nb incorporation via a facile hydrothermal method was confirmed by XRD (Rietveld refinement), XPS, TEM, FT-IR, Raman, and BET analyses, indicating successful lattice doping and structural modification. Photocatalytic dye degradation experiments were conducted using a model ...

Added: May 16, 2026

Perturbation theory for phase correlations of a light wave propagating in a turbulent medium

Kolokolov I., Lebedev V., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2026 Vol. 113 Article 054117

We theoretically investigate the correlation functions of the phase of a light wave propagating through a turbulent medium. We use an equation for the logarithm of a wave packet envelope, which includes a secondorder nonlinear term. Based on this equation, we develop a diagrammatic technique to calculate corrections to the correlation function obtained in the linear approximation. We ...

Added: May 15, 2026

Perovskite nanoparticles Cs4PbBr6 and CsPbBr3: synthesis, analysis and peculiar optical properties

Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.

All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...

Added: May 14, 2026

CsPbBr3 and Cs4PbBr6 perovskite nanoparticles: hidden potential of Cs4PbBr6 or ineffective fluorescence?

Гущина В. А., Mendeleev Communications 2025 Vol. 35 No. 2 P. 193–195

All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are intensively studied for their unique optical properties, though synthesizing single-phase nanoparticles has posed challenges. Detailed synthesis method of CsPbBr3 and Cs4PbBr6 single-phase nanoparticles and their chemical and phase analysis are described. Distinctive optical characteristics, such as photoluminescence, optical band gap and the Urbach tail region, are revealed and explained within the current ...

Added: May 14, 2026

SERS effect on the surface of ZnO nanorods coated with CsPbBr3

Гущина В. А., Physics of Complex Systems, Russia 2026 Vol. 7 No. 1 P. 3–15

Heterostructures based on ZnO nanorods and CsPbBr3 nanocrystals were investigated for their potential as semiconductor SERS substrates. We found that ZnO morphology governs the efficiency of interfacial energy transfer, leading to enhanced photoluminescence under 390 nm excitation and a noticeable reduction of the bandgap in the composites. Raman analysis revealed a pronounced intensity enhancement and ...

Added: May 14, 2026

Wave propagation and transformation in the frame of magnetohydrodynamics with a vortex electric field

Bisnovatyi-Kogan G., Kondratyev I., Moiseenko S. G., International Journal of Modern Physics A 2025 Vol. 40 No. 7 Article 2550018

Bright transient objects in different wave bands have been discovered in recent years. To explain these short (from ms to s), and very powerful events, different models, galactic and extragalactic, have been considered. One of the popular models is based on the suggestion of transformation of the magnetized plasma blob, presumably a magnetohydrodynamic (MHD) shock wave, moving with relativistic ...

Added: May 11, 2026

MHD Simulations of Magnetized Rotating Jets

Торопина О. Д., Бисноватый-Коган Г. С., Moiseenko S. G., Astronomy Reports 2025 Vol. 69 No. Suppl. 1 P. 80–90

The results of MHD simulations of supersonic astrophysical and laboratory jets in an external poloidal magnetic field (Br,Bz) taking into account the rotation of the matter, are presented. The ejected matter is collimated by the magnetic field, the degree of collimation and the flow structure depend on the relation between of the magnetic field induction and the angular ...

Added: May 11, 2026

Impact on Aluminum Alloy B95 by Powerful Pulsed Ion-Plasma and Electron Flows in the Plasma Focus Device

Morozov E. V., Demin A. S., Borovitskaya I. V. et al., Inorganic Materials: Applied Research 2026 Vol. 17 No. 3 P. 619–626

This article presents the results of experiments on the impact of powerful pulsed ion-plasma and electron flows generated in the working chamber of the Plasma Focus PF-5M installation during each highvoltage discharge on a model aluminum alloy B95. It is shown that the general characteristics of the alloy’s damage upon exposure to pulsed flows of helium ions (HI) ...

Added: May 4, 2026

An Approximate Method for Calculating Kinetic Coefficients of Heavy Ions in He-Containing Mixtures in a Strong Electric Field

A. A. Ponomarev, N. L. Aleksandrov, Plasma Physics Reports 2026 Vol. 52 No. 3 P. 367–378

An approximate method for calculating drift velocity and other kinetic coefficients of heavy ions in a light gas is generalized to gaseous mixtures. Obtained equations are used to calculate the mobilities of and ions, as well as rate constants for inelastic ion–molecule processes with these ions in helium with small additions of O2 under an electric field. Calculated ...

Added: April 27, 2026

Influence of the Normal Magnetic Component to Magnetotail Current Sheet Forma

Domrin V. I., Malova H. V., V. Yu. Popov et al., Cosmic Research 2026 Vol. 64 No. 2 P. 238–252

During magnetospheric perturbations a relatively thin current sheet with thickness about several proton gyroradii forms in the Earth’s magnetotail. In a framework of the kinetic model describing current sheet thinning in the magnetotail, the processes of its formation are investigated depending on the normal magnetic field magnitude which affects both the current sheet structure and particle dynamics within ...

Added: April 27, 2026

Asymmetric Equilibrium Structures of Superthin Current Sheets: The Asymmetry of Plasma Sources

Tsareva O. O., Malova H. V., V. Yu. Popov et al., Plasma Physics Reports 2026 Vol. 52 No. 2 P. 179–185

The influence of asymmetry of plasma sources on the structure and spatial localization of a superthin current sheet (STCS) supported by demagnetized electrons is studied using a self-consistent model. The simulation takes into account the presence of a single plasma source in the northern hemisphere, which makes the plasma flow asymmetric. It is demonstrated that the asymmetry of ...

Added: April 27, 2026

Особенности генерации квазипериодических ОНЧ-излучений с существенной частотной динамикой внутри плазмосферы

П.А.Беспалов, О.Н. Савина, Геомагнетизм и аэрономия 2025 Т. 65 № 5 С. 620–628

Several basic models of frequency dynamics in quasi-periodic VLF emissions with spectral form repetition periods from 10 to 300 s are considered. In all cases, we are talking about manifestations of cyclotron instability of electron radiation belts thet are well described within the framework of the plasma magnetospheric maser theory based an the averaged self-consistent system of quasi-linear ...

Added: April 25, 2026

Modeling of Influence of a Thin Dielectric Film at a Fraction of Cathode Surface on Transition of a Glow Gas Discharge into an Arc Discharge

Bondarenko G.G., Fisher M. R., Kristya V. I., Bulletin of the Russian Academy of Sciences: Physics 2026 Vol. 90 No. 4 P. 572–576

A model of the cathode layer of a glow gas discharge with a thin dielectric film on a fraction of the cathode’s working surface is formulated. It is shown that a glow discharge most rapidly transits to an arc discharge, accompanied by a significant increase in discharge current density and a decrease in cathode voltage drop, if the ...

Added: April 25, 2026

Stable Multi-Wavelength Resonant Metal-dielectric Hybrid Nanostructure in the Infrared Range

Lu X., Tognazzi A., Klimov V. et al., Plasmonics 2026 Vol. 21 P. 1503–1512

Plasmonic nanostructures typically exhibit shifts in their resonant wavelength in response to changes in the refractive index of the surrounding medium. This limits their applications in scenarios requiring stable optical resonances. Here we present a metallic-dielectric hybrid metasurface that exhibits stable multi-wavelength resonance even if the refractive index of its surrounding varies. To quantitatively evaluate the stability of ...

Added: April 22, 2026

The Ratan Active Region Patches (RARPs) database: A new database of solar active region radio signatures from the RATAN-600 telescope

Korelov M., Knyazeva I., Kurochkin E. et al., Astronomy and Computing 2026 Vol. 56 Article 101111

Solar flares and coronal mass ejections, originating from solar active regions (ARs), are the primary drivers of space weather and can disrupt technological systems. Forecasting efforts heavily rely on photospheric magnetic field data from the Space-weather HMI Active Region Patch (SHARPs) data products. However, the crucial energy release occurs higher in the solar corona. Radio ...

Added: March 25, 2026

XXVIII всероссийская ежегодная конференция «Солнечная и солнечно-земная физика-2024», Труды

СПб.: Главная (Пулковская) астрономическая обсерватория РАН, 2024.

Сборник содержит доклады, представленные на XXVIII Всероссийскую ежегодную конференцию по физике Солнца «Солнечная и солнечно-земная физика – 2024» (7 – 11 октября 2024, ГАО РАН, Санкт-Петербург). Конференция проводилась Главной (Пулковской) астрономической обсерваторией РАН при поддержке секции «Солнце» Научного совета по астрономии РАН и секции «Физика солнечной плазмы» Научного совета «Солнце-Земля». Тематика конференции включала в себя ...

Added: December 1, 2024

Предвспышечные флуктуации радиоизлучения активных областей Солнца

Абрамов-Максимов В. Е., Bakunina I. A., В кн.: Труды XXVII Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2023”, 9-13 октября 2023 года, Санкт-Петербург, ГАО РАН.: СПб.: ГАО РАН, 2023. С. 7–10.

Added: December 3, 2023

Труды XXVII Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2023”, 9-13 октября 2023 года, Санкт-Петербург, ГАО РАН

СПб.: ГАО РАН, 2023.

Сборник содержит доклады, представленные на ХХVII Всероссийской ежегодной конференции по физике Солнца «Солнечная и солнечно-земная физика — 2023» (9 —13 октября 2023, ГАО РАН, Санкт-Петербур). Конференция проводилась Главной (Пулковской) астрономической обсерваторией РАН при поддержке секции «Солнце» Научного совета по астрономии РАН и секции «Физика солнечной плазмы» Научного совета «Солнце-Земля». Тематика конференции включала в себя широкий круг вопросов по физике солнечной активности и ...

Added: December 3, 2023

Предвспышечные флуктуации микроволнового излучения активных областей

Added: February 11, 2023

Stokes inversion techniques with neural networks: analysis of uncertainty in parameter estimation

Mistryukova L., Plotnikov A., Aleksandr Khizhik et al., Solar Physics 2023 Vol. 298 Article 98

Magnetic fields are responsible for a multitude of Solar phenomena, including such destructive events as solar flares and coronal mass ejections, with the number of such events rising as we approach the peak of the 11-year solar cycle, in approximately 2025. High-precision spectropolarimetric observations are necessary to understand the variability of the Sun. The field ...

Added: December 29, 2022

Nonlinear Generation of Fluting Perturbations by Kink Mode in a Twisted Magnetic Tube

Ruderman M. S., Petrukhin N., Solar Physics 2022 Vol. 297 No. 9 Article 116

We study the excitation of fluting perturbations in a magnetic tube by an initially imposed kink mode. We use the ideal magnetohydrodynamic (MHD) equations in the cold-plasma approximation. We also use the thin-tube approximation and scale the dependent and independent variables accordingly. Then we assume that the dimensionless amplitude of the kink mode is small and use it ...

Added: September 13, 2022

Effect of Transitional Layer on Frequency of Kink Oscillations

Ruderman M. S., Petrukhin N., Solar Physics 2022 Vol. 297 No. 6 Article 72

In this article we study the effect of a transitional layer in a magnetic tube on the real part of the frequencies of kink oscillations. In our analysis, we use the model of a straight magnetic tube with the density and cross-section radius varying along the loop, and the thin-tube thin-boundary (TTTB) approximation. First, we calculate the ...

Added: July 11, 2022

Предвестники солнечных вспышек в микроволновом диапазоне

Абрамов-Максимов В. Е., Bakunina I. A., Известия Крымской астрофизической обсерватории 2021 Т. 117 № 1 С. 38–43

We present a study of the spatial distribution of quasi-periodic oscillations (QPO) of microwave emission in two active regions before M-class flares. We considered two cases: NOAA 11283 on September 6 and NOAA 11302 on September 25, 2011. We used daily observations on the Nobeyama radio heliograph (NoRH) at a frequency of 17 GHz. In both cases, preflare ...

Added: March 24, 2022