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Equatorial Electrojet as a Nonlinear ULF Antenna for the Short-Wave Heating Facility
Advances in Space Research (includes Cospar Information Bulletin). 2015. Vol. 56. No. 9. P. 1922–1926.
In this paper, we discuss some question related to the nature and manifestation of the equatorial electrojet. We study the equatorial electrojet as nonlinear antenna for generating ultra-low-frequency electromagnetic signals during periodic heating of the ionosphere by the short-wave heating-facility radiation. It is shown that for modulation at the frequency corresponding to the ULF band the generation of electromagnetic signals can be the considerable intensified. This effect is especially important for day-time magnetosphere where in same frequency band there are eigen-frequencies of plasma magnetospheric maser in the electron radiation belts. This can lead to modification of VLF emissions in the subauroral magnetosphere.
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
Колпак В. И., Могилевский М. М., Чугунин Д. В. et al., Известия РАН. Серия физическая 2024 Т. 88 № 3 С. 451–456
We have analyzed characteristics of electric components of the auroral kilometric radiation (AKR) detected onboard of two satellites, in the Earth’s inner magnetosphere (ERG) and in the solar wind (WIND). It is shown that spectra are modified as the result of AKR the propagation in plasma channels — high frequencies are suppressed. The computer simulation ...
Added: May 26, 2025
Колпак В. И., Могилевский М. М., Чугунин Д. В. et al., Доклады Российской академии наук. Физика, технические науки (ранее - Доклады Академии Наук. Физика) 2024 Т. 519 С. 26–29
Представлены результаты статистической обработки измерений аврорального километрового радиоизлучения, зарегистрированного на спутнике WIND вблизи точки либрации L1. Показано, что частота регистрации аврорального километрового радиоизлучения изменяется в противофазе с вариациями солнечной активности. Сделано предположение, что такое изменение частоты регистрации аврорального километрового радиоизлучения связано с особенностью распространения радиоизлучения в неоднородной плазме солнечного ветра. ...
Added: May 26, 2025
П.А. Беспалов, О.Н. Савина, Г.М. Нещеткин, Известия РАН. Серия физическая 2024 Т. 88 № 3 С. 413–419
Modern mathematical tools are used to perform a quantitative study of the complexity of electromagnetic
VLF chorus emissions in the region of their excitation near the local minimum of the magnetic field
outside the plasmasphere. Typical examples of chorus are selected for which high-resolution digitized data
are available from the vast observational data collected during the Van Allen ...
Added: December 13, 2024
Колпак В. И., Могилевский М. М., Чугунин Д. В. et al., Солнечно-земная физика 2021 Vol. 7 No. 1 P. 11–16
In this work, we have studied the signals of auroral kilometer radiation (AKR) from sources in the auroral regions of the Northern and Southern hemispheres simultaneously recorded by one satellite. We have carried out a detailed statistical analysis of more than 20 months of continuous AKR measurements made by the ERG satellite (also known as ...
Added: October 30, 2024
P. A. Bespalov, O. N. Savina, G. M. Neshchetkin, Bulletin of the Russian Academy of Sciences: Physics 2024 Vol. 88 No. 3 P. 353–358
Modern mathematical tools are used to perform a quantitative study of the complexity of electromagnetic
VLF chorus emissions in the region of their excitation near the local minimum of the magnetic field
outside the plasmasphere. Typical examples of chorus are selected for which high-resolution digitized data
are available from the vast observational data collected during the Van Allen ...
Added: May 18, 2024
Могилевский М. М., Чугунин Д. В., А. А. Чернышов et al., Письма в Журнал экспериментальной и теоретической физики 2022 Т. 115 № 9-10 С. 636–641
The electromagnetic fields measured on the ERG satellite are presented and their comparative analysis with measurements on the WIND satellite is carried out. The possibility of capturing auroral kilometric radiation (AKR) into plasma channels, which was first discovered on the ISEE satellite, has been confirmed. Plasma inhomogeneities, formed with an increase in geomagnetic activity, are ...
Added: June 20, 2023
S. I. Popel, Golub' A. P., L. M. Zelenyi, Physics of Plasmas 2023 Vol. 30 No. 4 Article 043701
Above the sunlit surface of Mercury, the properties and formation of dusty plasmas are investigated. It is demonstrated that the dusty plasmas are formed for subsolar angles exceeding approximately 76^o due to photoelectric and electrostatic processes. As a result, the dusty plasmas are present in the polar regions of Mercury, characterized by latitudes of about 70^o and above. The formation ...
Added: April 3, 2023
Железняков В. В., Shaposhnikov V., Письма в Астрономический журнал 2022 Т. 48 № 10 С. 720–732
The propagation and conditions for the escape of microwave radio emission from the local
source of quasi-harmonic bursts that is a current sheet filled with an electron–proton or electron–positron
plasma have been studied in the geometrical optics approximation. A comparative analysis of these
corpuscular compositions has shown that in the electron–proton plasma, in contrast to the ordinary
component that ...
Added: January 26, 2023
Tsareva O. O., Popov V., Malova H. V. et al., Moscow University Physics Bulletin 2021 Vol. 76 No. 5 P. 392–397
A two-dimensional model of an arbitrary planet’s magnetosphere is constructed using conformal maps. It is assumed that its magnetopause has the shape of a paraboloid of rotation. Due to the fixed geometry of the magnetopause, the magnetic moments and the size of the magnetosphere can change independently of each other, which is an advantage of ...
Added: January 19, 2022
Чугунин Д. В., Chernyshov A., Моисеенко И. Л. et al., Геомагнетизм и аэрономия 2020 Т. 60 № 5 С. 566–575
A method is proposed for the study of the height–time characteristics of physical processes in the
region of auroral electron acceleration. Auroral kilometer radiation, which is generated at the local electron
gyrofrequency, can be used to obtain the height distribution of the properties of a radiation source in the auroral
region, and long-term satellite measurements of the auroral ...
Added: December 17, 2020
СПб.: ООО "Издательство ВВМ", 2019.
Сборник содержит доклады, представленные на XXIII Всероссийскую ежегодную конференцию по физике Солнца «Солнечная и солнечно-земная физика – 2019» (7 – 11 октября 2019 года, ГАО РАН, Санкт-Петербург). Конференция проводилась Главной (Пулковской) астрономической обсерваторией РАН при финансовой поддержке Российского фонда фундаментальных исследований (грант 19-02-20010), секции «Солнце» Научного совета по астрономии РАН и секции «Плазменные процессы в ...
Added: December 25, 2019
Streltsov A. V., Berthelier J. -., Chernyshov A. et al., Space Science Reviews 2018 Vol. 214 No. 8 P. 1–122
Active ionospheric experiments using high-power, high-frequency transmitters, heaters, to study plasma processes in the ionosphere and magnetosphere continue to provide new insights into understanding plasma and geophysical proceses. This review describes the heating facilities, past and present, and discusses scientific results from these facilities and associated space missions. Phenomena that have been observed with these ...
Added: November 28, 2019
Bespalov P. A., Savina O., Annales Geophysicae 2019 Vol. 37 P. 819–824
We examine specific features of the realisation of the beam pulse amplifier (BPA) mechanism of chorus excitation in the density ducts that have a width of the order of 100– 300 km with refractive reflection.The dispersion characteristics of whistler emissions in a planar duct under conditions for the fulfilment of the Wentzel–Kramers–Brillouin (WKB) approximation and ...
Added: October 10, 2019