NAOC Open IR  > 空间科学研究部
Observations of a White-light Flare Associated with a Filament Eruption
Song, Y. L.1,2; Guo, Y.2,3; Tian, H.1; Zhu, X. S.4; Zhang, M.5,6; Zhu, Y. J.1
2018-02-10
Source PublicationASTROPHYSICAL JOURNAL
Volume854Issue:1
AbstractWe 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.
SubtypeArticle
KeywordSun: Activity Sun: Chromosphere Sun: Flares Sun: Magnetic Fields Sun: Photosphere
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNSFC(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)
DOI10.3847/1538-4357/aaa7f1
WOS KeywordSOFT-X-RAY ; QUASI-SEPARATRIX LAYERS ; SOLAR-FLARES ; CONTINUUM EMISSION ; CHROMOSPHERIC CONDENSATION ; MAGNETIC RECONNECTION ; SPECTRUM ; HYDROGEN ; RHESSI ; YOHKOH
Indexed BySCI
Language英语
Funding OrganizationNSFC(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)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000425000100004
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/20300
Collection空间科学研究部
Affiliation1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Jiangsu, Peoples R China
3.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China
4.Max Planck Inst Solar Syst Res, Justus von Liebig Weg 3, D-37077 Gottingen, Germany
5.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
6.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Song, Y. L.,Guo, Y.,Tian, H.,et al. Observations of a White-light Flare Associated with a Filament Eruption[J]. ASTROPHYSICAL JOURNAL,2018,854(1).
APA Song, Y. L.,Guo, Y.,Tian, H.,Zhu, X. S.,Zhang, M.,&Zhu, Y. J..(2018).Observations of a White-light Flare Associated with a Filament Eruption.ASTROPHYSICAL JOURNAL,854(1).
MLA Song, Y. L.,et al."Observations of a White-light Flare Associated with a Filament Eruption".ASTROPHYSICAL JOURNAL 854.1(2018).
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