Features of the Behavior of Microwave and Ultraviolet Emission of Solar Active Regions in Relation to Eruptive and Confined Flares

被引:1
作者
Bakunina, I. A. [1 ]
Melnikov, V. F. [2 ]
Abramov-Maximov, V. E. [2 ]
Morgachev, A. S. [3 ]
机构
[1] Natl Res Univ, Higher Sch Econ, Nizhnii Novgorod, Russia
[2] Russian Acad Sci, Cent Pulkovo Astron Observ, St Petersburg, Russia
[3] Nizhnii Novgorod State Univ, Nizhnii Novgorod, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/S0016793221080028
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
In this study, a comparative analysis was carried out on the preflare and flare conditions for six flares accompanied by coronal mass ejections (CMEs) and five events not accompanied by CMEs. All of the events occurred in the period 2011-2014. The features of the spatial dynamics of microwave emission of active regions (data from the Nobeyama Radioheliograph) prior to the selected events and during flares were studied. For the same 11 events, the fine structure of active ultraviolet (UV) sources was examined based on SDO/AIA data. Certain differences were found in the behavior of microwave emission for events with CMEs. The features of the frequency radio spectra from the RATAN-600 data were found for some active regions.
引用
收藏
页码:1159 / 1171
页数:13
相关论文
共 16 条
[1]   Features of Short-Period Oscillations of Microwave Emission from the Solar Active Region before the Flare [J].
Abramov-Maximov, V. E. ;
Bakunina, I. A. .
PHYSICS OF ATOMIC NUCLEI, 2018, 81 (03) :379-383
[2]  
AKHMEDOV SB, 1987, ASTROFIZ ISSLED, V25, P105
[3]   Signs of Preflare Situation in Solar Ultraviolet and Microwave Emission [J].
Bakunina, I. A. ;
Melnikov, V. F. ;
Morgachev, A. S. .
GEOMAGNETISM AND AERONOMY, 2020, 60 (07) :853-859
[4]   Preflare Dynamics of Microwave and Ultraviolet Emission in Active Regions of the Sun [J].
Bakunina, I. A. ;
Melnikov, V. F. ;
Morgachev, A. S. .
ASTROPHYSICS, 2020, 63 (02) :252-259
[5]  
Bakunina I.A., 2019, Astron. Astrophys. Trans, V31, P251
[6]   RATAN-600 radio telescope in the 24th solar-activity cycle. II. Multi-octave spectral and polarization high-resolution solar research system [J].
Bogod, V. M. ;
Alesin, A. M. ;
Pervakov, A. A. .
ASTROPHYSICAL BULLETIN, 2011, 66 (02) :205-214
[7]   A Study of Pre-flare Solar Coronal Magnetic Fields: Magnetic Flux Ropes [J].
Duan, Aiying ;
Jiang, Chaowei ;
He, Wen ;
Feng, Xueshang ;
Zou, Peng ;
Cui, Jun .
ASTROPHYSICAL JOURNAL, 2019, 884 (01)
[8]  
Esepkina N.A., 1972, Izvestiya Glavnoj Astronomicheskoj Observatorii v Pulkove, P3
[9]  
Garaimov V.I., 1997, PREPRINT SPECIAL AST
[10]   Double Arc Instability in the Solar Corona [J].
Ishiguro, N. ;
Kusano, K. .
ASTROPHYSICAL JOURNAL, 2017, 843 (02)