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Coronal and chromospheric dimmings during a halo-type CME event
Jiang YC(姜云春); Yang LH(杨丽恒); Li KJ(李可军); Ren DB(任冬柏); Jiang, YC (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL
2007-06-20
Volume662Issue:2Pages:L131-L134
DOI10.1086/519490
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun : Activity Sun : Coronal Mass Ejections (Cmes) Sun : Filaments Sun : Flares Sun : Magnetic Fields Sun : Uv Radiation
AbstractWe present complementary solar observations of a filament eruption occurring in association with a halo-type coronal mass ejection ( CME) on 2006 July 6 in AR 10898. This eruption was followed by an M2.5 flare and has led to the formation of a pair of dimmings, observed in H alpha, over network patterns in regions of opposite magnetic polarities located near the ends of the eruptive filament. These dimmings, also clearly visible in He I 10830 angstrom, EUV, and soft X-rays, were preceded by distinct H alpha and EUV brightenings that first mark the dimming sites during the rise phase of the flare and then form bright edges, observable in EUV, around the growing dim regions. These dimmings have been attributed to a magnetic flux rope that is considered the origin of the CME as proposed in recent theories. The brightenings reported here are a new aspect of the CME hydromagnetic process that has not been included in existing theories. The roles and implications of the network patterns, brightenings, and sharp edges in the dimming evolutions are discussed.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
Archive Date2007-06-18
WOS IDWOS:000247248800021
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMASS EJECTION ; FLARE ; IMAGER ; ERUPTION
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6104
Collection太阳物理研究组
Corresponding AuthorJiang, YC (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
AffiliationNational Astronomical Observatory/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
Recommended Citation
GB/T 7714
Jiang YC,Yang LH,Li KJ,et al. Coronal and chromospheric dimmings during a halo-type CME event[J]. ASTROPHYSICAL JOURNAL,2007,662(2):L131-L134.
APA Jiang YC,Yang LH,Li KJ,Ren DB,&Jiang, YC .(2007).Coronal and chromospheric dimmings during a halo-type CME event.ASTROPHYSICAL JOURNAL,662(2),L131-L134.
MLA Jiang YC,et al."Coronal and chromospheric dimmings during a halo-type CME event".ASTROPHYSICAL JOURNAL 662.2(2007):L131-L134.
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