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Солнечная и солнечно-земная физика –2013: Труды всероссийской ежегодной конференции по физике Солнца (25-27 сентября 2013 г.)
СПб. :
Главная (Пулковская) астрономическая обсерватория РАН, 2013.
Editor-in-chief: А. В. Степанов, Ю. А. Наговицын
Bakunina I. A., Мельников В. Ф., В кн. : Солнечная и солнечно-земная физика –2013: Труды всероссийской ежегодной конференции по физике Солнца (25-27 сентября 2013 г.). : СПб. : Главная (Пулковская) астрономическая обсерватория РАН, 2013. С. 11-14.
Radio-observations allow us to reveal the long-lived (2–5 days) intersunspot sources (ISS), whose centers are often located above the neutral line of the magnetic field separating leading and following parts of a whole active region (the first type of ISS (ISS-I)) or above the neutral line separating magnetic polarities into complex sunspots (the second type ...
Added: March 17, 2014
Злотник Е. Я., Зайцев В. В., Shaposhnikov V., В кн. : Солнечная и солнечно-земная физика –2013: Труды всероссийской ежегодной конференции по физике Солнца (25-27 сентября 2013 г.). : СПб. : Главная (Пулковская) астрономическая обсерватория РАН, 2013. С. 91-94.
Origin of the fine structure as quasi-harmonic parallel drifting stripes of enhanced brightness (zebra-pattern) in the dynamic spectrum of the kilometric radiation is discussed. A possible interpretation of the observed strucrure basing on the effect of double pkasma resonance (DPR) in the Jupiter magnetosphere is analyzed. It is shown that the observed features of zebra ...
Added: January 22, 2015
A. Shapoval, Le Mouël J. -., Shnirman M. G. et al., Astrophysical Journal 2015 Vol. 799 P. 56-65
The irregularity index λ is applied to the high-frequency content of daily sunspot numbers ISSN. This λ is
a modification of the standard maximal Lyapunov exponent. It is here computed as a function of embedding
dimension m, within four-year time windows centered at the maxima of Schwabe cycles. The λ(m) curves form
separate clusters (pre-1923 and post-1933). This ...
Added: December 25, 2014
Abramov-Maximov V. E., I. A. Bakunina, Physics of Atomic Nuclei 2018 Vol. 81 No. 3 P. 379-383
The radiation of microwave sources above sunspots at a frequency of 17 GHz gives information about the parameters of solar plasma in the regions where the magnetic-field strength is B ∼ 2000 G in the transition region between the chromosphere and corona. Short-period oscillations (with a period of severalminutes) of microwave emission from solar active ...
Added: November 21, 2018
Bespalov P. A., O.N. Savina, Cosmic Research 2016 Vol. 54 No. 3 P. 194-197
In this paper, the radial diffusion of energetic electrons in the Jovian radiation belts is considered. It is noted that the influence of global resonance in the electron radiation belts on the ring current provides original electrical pulses in the middle magnetosphere. The values of the random transfer of energetic electrons across the magnetic shells, ...
Added: September 19, 2016
Bakunina I. A., Abramov-Maximov V. E., Geomagnetism and Aeronomy 2019 Vol. 59 No. 7 P. 822-826
We present a study of quasi-periodic pulsations in the microwave emission from solar active region (AR) NOAA 12673, which produced the strongest flares of the 24th solar activity cycle. The data from daily observations of the Sun at the Nobeyama radio heliograph at a frequency of 17 GHz were used. The microwave emission of the ...
Added: October 31, 2019
Shapoval S., Le Mouël J. -., Shnirman M. G. et al., Nonlinear Processes in Geophysics 2014 Vol. 21 P. 797-813
We define, calculate and analyze irregularity indices λISSN of daily series of the International Sunspot Number ISSN as a function of increasing smoothing from N = 162 to 648 days. The irregularity indices λ are computed within 4-year sliding windows, with embedding dimensions m = 1 and 2. λISSN displays Schwabe cycles with ~5.5-year variations ...
Added: August 13, 2014
Abramov-Maximov V. E., Bakunina I. A., Geomagnetism and Aeronomy 2020 Vol. 60 No. 7 P. 846-852
A study of quasi-periodic fluctuations of solar microwave emission at the pref lare stage is pre-sented. Data from daily solar observations by the Nobeyama Radioheliograph at a frequency of 17 GHz areused. Five f lares are analyzed based on synthesized two-dimensional radio images. All of the consideredevents are characterized by pref lare fluctuations of microwave emission ...
Added: January 18, 2021
Bespalov P. A., Savina O. N., 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
Главная (Пулковская) астрономическая обсерватория РАН, 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 магнитосферах планет, атмосферах Солнца ...
Added: February 24, 2020
СПб. : Главная (Пулковская) астрономическая обсерватория РАН, 2020
Сборник содержит доклады, представленные на XXIV Всероссийскую ежегодную конференцию по физике Солнца «Солнечная и солнечно-земная физика – 2020» (5 – 9 октября 2020, ГАО РАН, Санкт-Петербург). Конференция проводилась Главной (Пулковской) астрономической обсерваторией РАН при поддержке секции «Солнце» Научного совета по астрономии РАН и секции «Плазменные процессы в магнитосферах планет, атмосферах Солнца и звёзд» Научного совета ...
Added: January 18, 2021
Irina A. Bakunina, Abramov-Maximov V., Nakariakov V. et al., Publications of the Astronomical Society of Japan 2013 Vol. 65 No. SP1 P. S13-1-S13-12
Long-term oscillations of microwave emission generated in sunspot magnetospheres are detected with the Nobeyama Radioheliograph (NoRH) at a frequency of 17 GHz, and the Siberian Solar Radio Telescope (SSRT) at 5.7 GHz. Significant periodicities in the range of 22–170 min are found in the variation of the emission intensity, polarisation and the degree of circular polarisation. Periods of ...
Added: December 30, 2013
Железняков В. В., Письма в Астрономический журнал 2018 Т. 44 № 7 С. 483-498
A model for the source of microwave bursts from the Crab pulsar in the form of a current sheet
with a transversemagnetic field has been investigated. The emission generation mechanism is based on the
excitation of plasma waves at the double plasma resonance frequencies in a nonrelativistic nonequilibrium
plasma followed by their scattering into electromagnetic waves that escape ...
Added: October 19, 2018
Zheleznyakov V. V., Bespalov P. A., Astronomy Letters 2018 Vol. 44 No. 7 P. 442-456
A model for the source of microwave bursts from the Crab pulsar in the form of a current sheet
with a transversemagnetic field has been investigated. The emission generation mechanism is based on the
excitation of plasma waves at the double plasma resonance frequencies in a nonrelativistic nonequilibrium
plasma followed by their scattering into electromagnetic waves that escape ...
Added: October 19, 2018
Bakunina I. A., Melnikov V. F., Morgachev A. S., Geomagnetism and Aeronomy 2020 Vol. 60 No. 7 P. 853-859
The spatial dynamics of microwave emission (data from the Nobeyama Radioheliograph) of activeregions with a complex magnetic field configuration before powerful f lares, as well as the fine structure ofactive sources of ultraviolet (UV) emission based on AIA/SDO data, are studied. It is shown that there isunsteady behavior of microwave sources, along with the ignition ...
Added: January 18, 2021
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
I. A. Bakunina, Abramov-Maximov V. E., Smirnova V. V., Journal of Physics: Conference Series 2016 Vol. 675 No. 3 P. 1-6
This work presents the microwave long-term oscillations with periods of a few tens of minutes obtained from Nobeyama radioheliograph (NoRH) at frequency 17 GHz. In two active regions the fluctuations of radio emission of different types of intersunspot sources (ISS) (compact and extended) were compared with the fluctuations in magnetic fields of sunspots. Common periods ...
Added: February 25, 2016
Bakunina I. A., Мельников В. Ф., В кн. : Солнечная и солнечно-земная физика –2013: Труды всероссийской ежегодной конференции по физике Солнца (25-27 сентября 2013 г.). : СПб. : Главная (Пулковская) астрономическая обсерватория РАН, 2013. С. 11-14.
Radio-observations allow us to reveal the long-lived (2–5 days) intersunspot sources (ISS), whose centers are often located above the neutral line of the magnetic field separating leading and following parts of a whole active region (the first type of ISS (ISS-I)) or above the neutral line separating magnetic polarities into complex sunspots (the second type ...
Added: March 17, 2014
СПб. : Главная (Пулковская) астрономическая обсерватория РАН, 2018
Сборник содержит доклады, представленные на XXII Всероссийскую ежегодную конференцию по физике Солнца «Солнечная и солнечно-земная физика – 2018» (8 – 12 октября 2018 года, ГАО РАН, Санкт-Петербург). Конференция проводилась Главной (Пулковской) астрономической обсерваторией РАН при поддержке Российского фонда фундаментальных исследований, секции «Солнце» Научного совета по астрономии РАН и секции «Плазменные процессы в магнитосферах планет, атмосферах ...
Added: November 21, 2018
И.А. Бакунина, Абрамов-Максимов В. Е., Ядерная физика 2018 Т. 81 № 3 С. 366-370
Radiation of microwave sources above sunspots at a frequency of 17 GHz gives information on parameters
of solar plasma in the regions of magnetic field B ~ 200 G in the transition region between chromosphere
and corona. Short period (with periods in several minutes) oscillations of microwave emission of solar active
regions (ARs) reflect wave processes in the ...
Added: February 28, 2018
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
Титова Е. Е., Д.Р. Шкляр, Балихин М. А., Геомагнетизм и аэрономия 2017 Т. 57 № 6 С. 744-750
This work is devoted to the study of the generation of the equatorial noise—electromagnetic radiation below the LHR frequency observed near the equatorial plane of the magnetosphere at distances of ~4RE. According to accepted views, the generation of the equatorial noise is related to the instability of ring current protons. In this work, a logarithmic ...
Added: January 2, 2018
I. A. Bakunina, Melnikov V. F., Shain A. V. et al., Geomagnetism and Aeronomy 2022 Vol. 62 No. 8 P. 1066-1072
The dynamics of the preflare phase of microwave and ultraviolet emission for M-class X-ray flares in three active regions (ARs), two flares with coronal mass ejections (CMEs) and one flare without a CME, were considered. Extrapolation of the magnetic field in the AR corona showed that eruptive events were associated with the formation of a ...
Added: February 16, 2023
Bakunina I. A., Мельников В. Ф., Шаин А. В. et al., Известия Крымской астрофизической обсерватории 2022 Т. 118 № 1 С. 65-74
To date, observational signs that determine the ability of solar active region to cause an eruption of matter into the high layers of the solar corona (CME) are not entirely clear. This makes it difficult to understand the physical mechanism of the CME trigger. This paper presents a search for observational signs that may indicate ...
Added: March 23, 2022
O.N.Savina, Bespalov P. A., Cosmic Research 2015 Vol. 53 No. 1 P. 74-79
The nonlinear response of the equatorial current jet to external actions is considered, as well as
some geophysical effects produced by it. Irradiating the current jet by shortwave electromagnetic radiation
with amplitude modulation in ranges of VLF emission and geomagnetic pulsations, one can provide for con
ditions when a nonlinear antenna is realized in the current jet region. ...
Added: January 19, 2015
Shapoval Alexander, Le Mouel J., Shnirman M. G. et al., Astrophysical Journal 2013 Vol. 779 P. 108-116
Sunspot number WN displays quasi-periodical variations that undergo regime changes. These irregularities could indicate a chaotic system and be measured by Lyapunov exponents. We define a functional l (an “irregularity index”) that is close to the (maximal) Lyapunov exponent for dynamical systems and well defined for series with a random component: this allows one to ...
Added: March 7, 2014