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  • Особенности корональных магнитных структур в бессиловом приближении для активных областей со вспышками рентгеновского класса М, сопровождающимися и не сопровождающимися корональными выбросами масс
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Subject
News
September 15, 2026
Immunity to Chaos: How Personal Resources Help Us Cope with the Challenges of a Turbulent World
International conflicts, crises and digital overload—the modern world puts our minds to the test every day. Traditional psychology often focuses on the consequences: anxiety, depression, and psychosomatic disorders. But what if we looked at the problem differently—through the lens of the resources that prevent us from breaking down? Psychological immunity is precisely this set of resources. Alena Zolotareva and her group, Psychological Immunity as a Resource for Positive Functioning, are developing an integrative model of this phenomenon, adapting diagnostic tools and preparing for large-scale empirical research. Why do psychologists need to collaborate with medical professionals, and how could their research transform preventive care in clinics and corporations?
September 11, 2026
How to Assess Students Knowledge in the Age of AI
A researcher at HSE University has proposed a flowchart to help lecturers decide how to assess students who use artificial intelligence. It shows where the use of AI should be restricted and where it can be incorporated into the learning process. The article has been published in IT Professional.
September 9, 2026
‘Balkan Hospitality Opens Doors: Studying Dialects on the Verge of Extinction
You cannot study spoken dialects from books. Instead, you need to go to a village, seek out its elders, and earn the trust of local residents before you can record hours of spontaneous stories. This is how Natalia Muravleva, Associate Professor at the Faculty of Humanities, conducts her research. Her internship in Serbia continued her long-standing study of dialects spoken by Macedonian settlers. In this interview, she discusses how diaspora cultural centres help researchers reach informants, why native speakers need to be interviewed only in their own language (otherwise, as she puts it, they may 'break'), and how a single field season helped her finalise her monograph. She also shares warm memories of autumn in Belgrade and of colleagues with whom grammar can be discussed in three languages at once.

 

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

С. 17–20.
И. А. Бакунина, В.Ф. М., В.Е. А.

 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 radioheliograph and SDO/AIA, differences in observational features in the pre-flare and post-flare phases for events with CME revealed.

Language: Russian
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Keywords: солнечные вспышкиsolar flaresCMEкорональные выбросы массы (КВМ)magnetic flux ropesмагнитные жгуты

In book

Труды XXVI Всероссийской ежегодной конференции по физике Солнца “Солнечная и солнечно-земная физика - 2022, 3-7 октября 2022
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.
Similar publications
Взаимное расположение магнитных жгутов и источников микроволнового излучения в эруптивных вспышках
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Added: June 22, 2026
Spatial Position of Magnetic Flux Ropes in Flare Active Regions with and without Coronal Mass Ejections
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Using statistics from 15 X-ray class M flare events, the features of the position and orientation of magnetic flux ropes in the general spatial structure of the magnetic field of the active region (AR) during flares and coronal mass ejections (CME) were studied by reconstructing the coronal magnetic field from the photosphere to the corona ...
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It is shown on a sample of 15 M-class X-ray flares that CMEs occur in events with «open» magnetic ropes reconstructed in the NLFFF approximation. Magnetic ropes coincide with radio brightness maxima at 17 GHz. Several hours before the flare, in the region of magnetic ropes, a glow of loops in the EUV (94, 131 ...
Added: December 1, 2024
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Added: December 1, 2024
Magnetic Flux Ropes in Active Regions with M-Class Flares
I. A. Bakunina, Melnikov V. F., Kuznetsov S. A. et al., Geomagnetism and Aeronomy, Netherlands 2023 Vol. 63 No. 8 P. 1154–1166
The dynamics of the magnetic field reconstructed in the nonlinear force-free approximation in the pre-flare and post-flare phases of M-class X-ray flares in seven active regions is considered: two flares with a coronal mass ejection (CME), two flares with eruption but no CMEs, and three flares without eruption. Extrapolation of the magnetic field to the ...
Added: February 3, 2024
The Frequency of Occurrence of Pre-Flare Fluctuations in Microwave Radiation of Active Regions
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We present a study of the frequency of occurrence of quasi-periodic fluctuations (QPFs) of microwave radiation from solar active regions at the pre-flare stage. We used correlation curves obtained with the Nobeyama Radioheliograph (NoRH). We analyzed 529 flares of classes X, M, and C (according to the GOES classification). In a significant number of considered events (approximately 75% ...
Added: December 28, 2023
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