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RAPID PENUMBRA AND LORENTZ FORCE CHANGES IN AN X1.0 SOLAR FLARE
Xu Z(徐喆)1,2; Jiang YC(姜云春)1; Yang JY(杨家燕)1; Yang B(杨波)1,2; Bi Y(毕以)1,2
发表期刊ASTROPHYSICAL JOURNAL LETTERS
2016-03-20
卷号820期号:1
DOI10.3847/2041-8205/820/1/L21
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Flares Sun: Photosphere
摘要

We present observations of the violent changes in photospheric magnetic structures associated with an X1.1 flare, which occurred in a compact delta-configuration region in the following part of AR 11890 on 2013 November 8. In both central and peripheral penumbra regions of the small delta sunspot, these changes took place abruptly and permanently in the reverse direction during the flare: the inner/outer penumbra darkened/disappeared, where the magnetic fields became more horizontal/vertical. Particularly, the Lorentz force (LF) changes in the central/peripheral region had a downward/upward and inward direction, meaning that the local pressure from the upper atmosphere was enhanced/released. It indicates that the LF changes might be responsible for the penumbra changes. These observations can be well explained as the photospheric response to the coronal field reconstruction within the framework of the magnetic implosion theory and the back reaction model of flares.

项目资助者Natural Science Foundation of China(11273056, 11473065, 11333007, 11403098, 11503081) ; CAS "Light of West China"
语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者The American Astronomical Society
ISSN2041-8205
URL查看原文
归档日期2016-12-15
WOS记录号WOS:000372352000021
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]Magnetic-field Changes ; 2011 February 15 ; X-class Flares ; Noaa Active-region-9026 ; Active Regions ; X2.2 Flare ; Energy ; Transients ; Motion ; Line
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9358
专题太阳物理研究组
通讯作者Xu Z(徐喆)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式
GB/T 7714
Xu Z,Jiang YC,Yang JY,et al. RAPID PENUMBRA AND LORENTZ FORCE CHANGES IN AN X1.0 SOLAR FLARE[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,820(1).
APA Xu Z,Jiang YC,Yang JY,Yang B,&Bi Y.(2016).RAPID PENUMBRA AND LORENTZ FORCE CHANGES IN AN X1.0 SOLAR FLARE.ASTROPHYSICAL JOURNAL LETTERS,820(1).
MLA Xu Z,et al."RAPID PENUMBRA AND LORENTZ FORCE CHANGES IN AN X1.0 SOLAR FLARE".ASTROPHYSICAL JOURNAL LETTERS 820.1(2016).
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