Observations of a White-light Flare Associated with a Filament Eruption
文献类型：期刊论文
| 作者 | Zhu, X. S.1; Song, Y. L.4,5; Guo, Y.5,6; Tian, H.4 ; Zhang, M.2,3; Zhu, Y. J.4
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2018-02-10 |
| 卷号 | 854期号:1 |
| 关键词 | Sun: Activity Sun: Chromosphere Sun: Flares Sun: Magnetic Fields Sun: Photosphere |
| DOI | 10.3847/1538-4357/aaa7f1 |
| 文献子类 | Article |
| 英文摘要 | We present observations of an M5.7 white-light flare (WLF) associated with a small filament eruption in NOAA active region 11476 on 2012 May 10. During this flare, a circular flare ribbon appeared in the east and a remote brightening occurred in the northwest of the active region. Multi-wavelength data are employed to analyze the WLF, including white light (WL), ultraviolet, extreme ultraviolet, hard X-ray (HXR), and microwave. A close spatial and temporal relationship between the WL, HXR, and microwave emissions is found in this WLF. However, the peak time of the WL emission lagged that of the HXR and microwave emissions by about 1-2 minutes. Such a result tends to support the backwarming mechanism for the WL emission. Interestingly, the enhanced WL emission occurred at the two footpoints of the filament. Through forced and potential field extrapolations, we find that the 3D magnetic field in the flare region has a fan-spine feature and that a flux rope lies under the dome-like field structure. We describe the entire process of flare evolution into several steps, each one producing the sequent brightening below the filament, the circular flare ribbons, and the WL enhancement, respectively. We suggest that a reconnection between the magnetic field of the filament and the overlying magnetic field or reconnection within the flux rope leads to the WL enhancement. |
| WOS关键词 | SOFT-X-RAY ; QUASI-SEPARATRIX LAYERS ; SOLAR-FLARES ; CONTINUUM EMISSION ; CHROMOSPHERIC CONDENSATION ; MAGNETIC RECONNECTION ; SPECTRUM ; HYDROGEN ; RHESSI ; YOHKOH |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000425000100004 |
| 资助机构 | NSFC(11790304 (11790300) ; NSFC(11790304 (11790300) ; Recruitment Program of Global Experts of China ; Recruitment Program of Global Experts of China ; Key Laboratory for Modern Astronomy and Astrophysics (Nanjing University) ; Key Laboratory for Modern Astronomy and Astrophysics (Nanjing University) ; Max Planck Partner Group program ; Max Planck Partner Group program ; ISSI ; ISSI ; ISSI-BJ ; ISSI-BJ ; 11125314 ; 11125314 ; 11773016 ; 11773016 ; 11533005 ; 11533005 ; U1531247 ; U1531247 ; 41574166) ; 41574166) ; NSFC(11790304 (11790300) ; NSFC(11790304 (11790300) ; Recruitment Program of Global Experts of China ; Recruitment Program of Global Experts of China ; Key Laboratory for Modern Astronomy and Astrophysics (Nanjing University) ; Key Laboratory for Modern Astronomy and Astrophysics (Nanjing University) ; Max Planck Partner Group program ; Max Planck Partner Group program ; ISSI ; ISSI ; ISSI-BJ ; ISSI-BJ ; 11125314 ; 11125314 ; 11773016 ; 11773016 ; 11533005 ; 11533005 ; U1531247 ; U1531247 ; 41574166) ; 41574166) |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/20300]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Max Planck Inst Solar Syst Res, Justus von Liebig Weg 3, D-37077 Gottingen, Germany 2.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 5.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Jiangsu, Peoples R China 6.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, X. S.,Song, Y. L.,Guo, Y.,et al. Observations of a White-light Flare Associated with a Filament Eruption[J]. ASTROPHYSICAL JOURNAL,2018,854(1). |
| APA | Zhu, X. S.,Song, Y. L.,Guo, Y.,Tian, H.,Zhang, M.,&Zhu, Y. J..(2018).Observations of a White-light Flare Associated with a Filament Eruption.ASTROPHYSICAL JOURNAL,854(1). |
| MLA | Zhu, X. S.,et al."Observations of a White-light Flare Associated with a Filament Eruption".ASTROPHYSICAL JOURNAL 854.1(2018). |
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来源：国家天文台
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