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SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION
Bi Y(毕以)1,3; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Hong JC(洪俊超)1,2; Li HD(李海东)1; Yang D(杨丹)1,2; Yang B(杨波)1,2
Source PublicationASTROPHYSICAL JOURNAL
2014-08-01
Volume790Issue:2
DOI10.1088/0004-637X/790/2/100
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: coronal mass ejections (CMEs)Sun: coronal mass ejections (CMEs) Sun: filaments, prominences Sun: oscillations
Abstract

Both large-amplitude longitudinal (LAL) oscillations and material drainage in a solar filament are associated with the flow of material along the filament axis, often followed by an eruption. However, the relationship between these two motions and a subsequent eruption event is poorly understood. We analyze a filament eruption using EUV imaging data captured by the Atmospheric Imaging Array on board the Solar Dynamics Observatory and the Ha images from the Global Oscillation Network Group. Hours before the eruption, the filament was activated, with one of its legs undergoing a slow rising motion. The asymmetric activation inclined the filament relative to the solar surface. After the active phase, LAL oscillations were observed in the inclined filament. The oscillation period increased slightly over time, which may suggest that the magnetic fields supporting the filament evolve to be flatter during the slow rising phase. After the oscillations, a significant amount of filament material was drained toward one filament endpoint, followed immediately by the violent eruption of the filament. The material drainage may further support the change in magnetic topology prior to the eruption. Moreover, we suggest that the filament material drainage could play a role in the transition from a slow to a fast rise of the erupting filament.

Funding Project973 Program[2011CB811403] ; Natural Science Foundation of China[11173058] ; Natural Science Foundation of China[11273056] ; CAS[KJCX2-EW-T07] ; Open Research Programs of CAS
Funding Organization973 Program[2011CB811403] ; Natural Science Foundation of China[11173058, 11273056] ; CAS[KJCX2-EW-T07] ; Open Research Programs of CAS
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
ISSN0004-637X
URL查看原文
Archive Date2014-07-17
WOS IDWOS:000339115800017
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; AMPLITUDE LONGITUDINAL OSCILLATIONS ; ABSORPTION FEATURES ; PERIODIC MOTION ; MAGNETIC-FIELD ; MORETON WAVE ; FLUX ROPES ; PROMINENCE ; FLARE ; ENERGY
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6245
Collection太阳物理研究组
Corresponding AuthorBi Y(毕以)
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
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Bi Y,Jiang YC,Yang JY,et al. SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION[J]. ASTROPHYSICAL JOURNAL,2014,790(2).
APA Bi Y.,Jiang YC.,Yang JY.,Hong JC.,Li HD.,...&Yang B.(2014).SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION.ASTROPHYSICAL JOURNAL,790(2).
MLA Bi Y,et al."SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION".ASTROPHYSICAL JOURNAL 790.2(2014).
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