A White-light Flare Powered by Magnetic Reconnection in the Lower Solar Atmosphere
文献类型：期刊论文
| 作者 | Song Yongliang2,3 ; Tian Hui2,3; Zhu Xiaoshuai4; Chen Yajie3,4; Zhang Mei1,2; Zhang Jingwen5
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2020-04-10 |
| 卷号 | 893期号:1页码:7 |
| 关键词 | Solar flares Solar magnetic fields Solar magnetic reconnection Solar active regions |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ab83fa |
| 英文摘要 | White-light flares (WLFs), first observed in 1859, refer to a type of solar flare showing an obvious enhancement of the visible continuum emission. This type of enhancement often occurs in most energetic flares, and is usually interpreted as a consequence of efficient heating in the lower solar atmosphere through nonthermal electrons propagating downward from the energy release site in the corona. However, this coronal-reconnection model has difficulty in explaining the recently discovered small WLFs. Here we report a C2.3 WLF, which is associated with several observational phenomena: a fast decrease in opposite-polarity photospheric magnetic fluxes, the disappearance of two adjacent pores, significant heating of the lower chromosphere, a negligible increase of the hard X-ray flux, and an associated U-shaped magnetic field configuration. All these suggest that this WLF is powered by magnetic reconnection in the lower part of the solar atmosphere rather than by reconnection higher up in the corona. |
| WOS关键词 | HARD X-RAY ; FLUX ; TELESCOPE ; EMERGENCE ; REGION ; ORIGIN ; TRACE |
| 资助项目 | NSFC[11803002] ; NSFC[11825301] ; NSFC[11973056] ; NSFC[11790304(11790300)] ; NSFC[U1531247] ; CAS Key Laboratory of Solar Activity[KLSA201810] ; Strategic Priority Research Program of CAS[XDA17040507] ; Max Planck Partner Group program ; Norwegian Space Center ; ESA |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000526404500001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | NSFC ; NSFC ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Max Planck Partner Group program ; Max Planck Partner Group program ; Norwegian Space Center ; Norwegian Space Center ; ESA ; ESA ; NSFC ; NSFC ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Max Planck Partner Group program ; Max Planck Partner Group program ; Norwegian Space Center ; Norwegian Space Center ; ESA ; ESA ; NSFC ; NSFC ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Max Planck Partner Group program ; Max Planck Partner Group program ; Norwegian Space Center ; Norwegian Space Center ; ESA ; ESA ; NSFC ; NSFC ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Max Planck Partner Group program ; Max Planck Partner Group program ; Norwegian Space Center ; Norwegian Space Center ; ESA ; ESA |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/55782]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Song Yongliang |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 4.Max Planck Inst Solar Syst Res, Justus von Liebig Weg 3, D-37077 Gottingen, Germany 5.Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA |
| 推荐引用方式 GB/T 7714 | Song Yongliang,Tian Hui,Zhu Xiaoshuai,et al. A White-light Flare Powered by Magnetic Reconnection in the Lower Solar Atmosphere[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,893(1):7. |
| APA | Song Yongliang,Tian Hui,Zhu Xiaoshuai,Chen Yajie,Zhang Mei,&Zhang Jingwen.(2020).A White-light Flare Powered by Magnetic Reconnection in the Lower Solar Atmosphere.ASTROPHYSICAL JOURNAL LETTERS,893(1),7. |
| MLA | Song Yongliang,et al."A White-light Flare Powered by Magnetic Reconnection in the Lower Solar Atmosphere".ASTROPHYSICAL JOURNAL LETTERS 893.1(2020):7. |
入库方式： OAI收割
来源：国家天文台
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