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The magnetic rope structure and associated energetic processes in the 2000 July 14 solar flare
Yan, YH; Deng, YY; Karlicky, M; Fu, QJ; Wang, SJ; Liu, YY
2001-04-18
发表期刊ASTROPHYSICAL JOURNAL
卷号551期号:1页码:L115-L119
摘要In the reconstructed nonlinear force-free magnetic field of NOAA Active Region 9077 before the X5.7/3B (10:24 UT) flare on 2000 July 14, we reveal for the first time the presence of a magnetic rope from the extrapolation of the three-dimensional magnetic field structure. This magnetic rope is located in a space above the magnetic neutral lines of the filament. The calculated field lines of the rope rotate around its axis for more than three turns. Overlying the rope are multilayer magnetic arcades with different orientations. These arcades are in agreement with the Transition Region and Coronal Explorer observations. The estimated free magnetic energy in this rope system is about 1.6 x 10(32) ergs. Such magnetic field structure provides a favorable model for the interpretation of the energetic flare processes as revealed by H alpha, EUV, and radio observations. In particular, the intermittent cospatial brightening of the rope in EUV 1600 Angstrom image leading to the onset of the flare suggests that the rope instability may have triggered the flare event, and the drifting pulsation structure in the decimetric frequency range is considered to manifest the initial phase of the coronal mass ejection.
关键词Sun : Flares Sun : Magnetic Fields Sun : Radio Radiation Sun : Uv Radiation
收录类别SCI
语种英语
WOS记录号WOS:000168153300027
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8625
专题太阳物理研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing Astron Observ, Beijing 100012, Peoples R China
2.Acad Sci Czech Republ, Inst Astron, CZ-25165 Ondrejov, Czech Republic
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Yan, YH,Deng, YY,Karlicky, M,et al. The magnetic rope structure and associated energetic processes in the 2000 July 14 solar flare[J]. ASTROPHYSICAL JOURNAL,2001,551(1):L115-L119.
APA Yan, YH,Deng, YY,Karlicky, M,Fu, QJ,Wang, SJ,&Liu, YY.(2001).The magnetic rope structure and associated energetic processes in the 2000 July 14 solar flare.ASTROPHYSICAL JOURNAL,551(1),L115-L119.
MLA Yan, YH,et al."The magnetic rope structure and associated energetic processes in the 2000 July 14 solar flare".ASTROPHYSICAL JOURNAL 551.1(2001):L115-L119.
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