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ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES
Yang, Shuhong1,2; Zhang, Jun1,2; Erdelyi, Robert3
2016-12-20
Source PublicationAstrophysical Journal Letters
Volume833Issue:2
AbstractBased on the Interface Region Imaging Spectrograph observations, we study the response of a solar sunspot light wall to external disturbances. A flare occurrence near the light wall caused material to erupt from the lower solar atmosphere into the corona. Some material falls back to the solar surface and hits the light bridge (i.e., the base of the light wall), then sudden brightenings appear at the wall base followed by the rise of wall top, leading to an increase of the wall height. Once the brightness of the wall base fades, the height of the light wall begins to decrease. Five hours later, another nearby flare takes place, and a bright channel is formed that extends from the flare toward the light bridge. Although no obvious material flow along the bright channel is found, some ejected material is conjectured to reach the light bridge. Subsequently, the wall base brightens and the wall height begins to increase again. Once more, when the brightness of the wall base decays, the wall top fluctuates to lower heights. We suggest, based on the observed cases, that the interaction of falling material and ejected flare material with the light wall results in the brightenings of wall base and causes the height of the light wall to increase. Our results reveal that the light wall can be not only powered by the linkage of p-mode from below the photosphere, but may also be enhanced by external disturbances, such as falling material.
SubtypeArticle
KeywordSun: Chromosphere Sun: Flares Sun: Photosphere Sun: Uv Radiation
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Natural Science Foundations of China(11673035 ; National Natural Science Foundations of China(11673035 ; Strategic Priority Research Program(XDB09000000) ; Strategic Priority Research Program(XDB09000000) ; Youth Innovation Promotion Association of CAS(2014043) ; Youth Innovation Promotion Association of CAS(2014043) ; CAS Project(KJCX2-EW-T07) ; CAS Project(KJCX2-EW-T07) ; Young Researcher Grant of National Astronomical Observatories of CAS ; Young Researcher Grant of National Astronomical Observatories of CAS ; STFC (UK) ; STFC (UK) ; Royal Society ; Royal Society ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; 11533008 ; 11533008 ; 11373004 ; 11373004 ; 11303049 ; 11303049 ; 11221063) ; 11221063) ; National Natural Science Foundations of China(11673035 ; National Natural Science Foundations of China(11673035 ; Strategic Priority Research Program(XDB09000000) ; Strategic Priority Research Program(XDB09000000) ; Youth Innovation Promotion Association of CAS(2014043) ; Youth Innovation Promotion Association of CAS(2014043) ; CAS Project(KJCX2-EW-T07) ; CAS Project(KJCX2-EW-T07) ; Young Researcher Grant of National Astronomical Observatories of CAS ; Young Researcher Grant of National Astronomical Observatories of CAS ; STFC (UK) ; STFC (UK) ; Royal Society ; Royal Society ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; 11533008 ; 11533008 ; 11373004 ; 11373004 ; 11303049 ; 11303049 ; 11221063) ; 11221063)
DOI10.3847/2041-8213/833/2/L18
WOS KeywordREGION-IMAGING-SPECTROGRAPH ; DYNAMICS-OBSERVATORY SDO ; TRANSITION REGION ; PLASMA EJECTIONS ; BRIDGE ; IMPACTS ; SUN
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundations of China(11673035 ; National Natural Science Foundations of China(11673035 ; Strategic Priority Research Program(XDB09000000) ; Strategic Priority Research Program(XDB09000000) ; Youth Innovation Promotion Association of CAS(2014043) ; Youth Innovation Promotion Association of CAS(2014043) ; CAS Project(KJCX2-EW-T07) ; CAS Project(KJCX2-EW-T07) ; Young Researcher Grant of National Astronomical Observatories of CAS ; Young Researcher Grant of National Astronomical Observatories of CAS ; STFC (UK) ; STFC (UK) ; Royal Society ; Royal Society ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; 11533008 ; 11533008 ; 11373004 ; 11373004 ; 11303049 ; 11303049 ; 11221063) ; 11221063) ; National Natural Science Foundations of China(11673035 ; National Natural Science Foundations of China(11673035 ; Strategic Priority Research Program(XDB09000000) ; Strategic Priority Research Program(XDB09000000) ; Youth Innovation Promotion Association of CAS(2014043) ; Youth Innovation Promotion Association of CAS(2014043) ; CAS Project(KJCX2-EW-T07) ; CAS Project(KJCX2-EW-T07) ; Young Researcher Grant of National Astronomical Observatories of CAS ; Young Researcher Grant of National Astronomical Observatories of CAS ; STFC (UK) ; STFC (UK) ; Royal Society ; Royal Society ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; Chinese Academy of Sciences Presidents International Fellowship(2016VMA045) ; 11533008 ; 11533008 ; 11373004 ; 11373004 ; 11303049 ; 11303049 ; 11221063) ; 11221063)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000393433000001
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8270
Collection太阳物理研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Coll Astron & Space Sci, Beijing 100049, Peoples R China
3.Univ Sheffield, Sch Math & Stat, Solar Phys & Space Plasma Res Ctr, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England
Recommended Citation
GB/T 7714
Yang, Shuhong,Zhang, Jun,Erdelyi, Robert. ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES[J]. Astrophysical Journal Letters,2016,833(2).
APA Yang, Shuhong,Zhang, Jun,&Erdelyi, Robert.(2016).ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES.Astrophysical Journal Letters,833(2).
MLA Yang, Shuhong,et al."ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES".Astrophysical Journal Letters 833.2(2016).
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