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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
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2016-03-20
Volume820Issue:1
DOI10.3847/2041-8205/820/1/L21
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Flares Sun: Photosphere
Abstract

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.

Funding ProjectNatural Science Foundation of China[11273056] ; Natural Science Foundation of China[11473065] ; Natural Science Foundation of China[11333007] ; Natural Science Foundation of China[11403098] ; Natural Science Foundation of China[11503081] ; CAS "Light of West China"
Funding OrganizationNatural Science Foundation of China[11273056, 11473065, 11333007, 11403098, 11503081] ; CAS "Light of West China"
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
Archive Date2016-12-15
WOS IDWOS:000372352000021
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMagnetic-field Changes ; 2011 February 15 ; X-class Flares ; Noaa Active-region-9026 ; Active Regions ; X2.2 Flare ; Energy ; Transients ; Motion ; Line
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9358
Collection太阳物理研究组
Corresponding AuthorXu Z(徐喆)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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