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The H-alpha surges and EUV jets from magnetic flux emergences and cancellations
Jiang YC(姜云春); Chen HD(陈华东); Li KJ(李可军); Shen YD(申远灯); Yang LH(杨丽恒); Jiang, YC (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationASTRONOMY & ASTROPHYSICS
2007-07
Volume469Issue:1Pages:331-337
DOI10.1051/0004-6361:20053954
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordSun : Activity Sun : Magnetic Field
AbstractWe analyzed multi-wavelength observations of three surges with a recurrent period of about 70 min in Ha, EUV, and soft X-ray, which occurred in the quiet-sun region on 2000 November 3. These homologous surges were associated with small flares at the same base, but their exact footpoints were spatially separated from the flare. Each surge consisted of a cool Ha component and a hot, EUV or soft X-ray component, which showed different evolutions not only in space but also in time. The EUV jets had slightly converging shapes, underwent more complicate development, showed clearly twisting structures, and appeared to open to space. The Ha surges, however, were smaller and only traced the edges of the jets. They always occurred later than the jets but had dark EUV counterparts appearing in the bright jets. These surge activities were closely associated with two emerging bipoles and their driven flux cancellations at the base region, and were consistent with the magnetic reconnection surge model. The possible cause of the delay between the surges and jets, of the dark structures in the jets are discussed, along with the possible role of flux cancellations in generation of these surges.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6361
URL查看原文
Archive Date2007-06-18
WOS IDWOS:000247260300037
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordX-RAY JETS ; EXTREME-ULTRAVIOLET ; TRANSITION REGION ; CORONAL EXPLORER ; ACTIVE-REGION ; RECONNECTION ; TELESCOPE ; FILAMENT ; MULTIWAVELENGTH ; MISSION
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6103
Collection太阳物理研究组
Corresponding AuthorJiang, YC (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
AffiliationNational Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, PR China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jiang YC,Chen HD,Li KJ,et al. The H-alpha surges and EUV jets from magnetic flux emergences and cancellations[J]. ASTRONOMY & ASTROPHYSICS,2007,469(1):331-337.
APA Jiang YC,Chen HD,Li KJ,Shen YD,Yang LH,&Jiang, YC .(2007).The H-alpha surges and EUV jets from magnetic flux emergences and cancellations.ASTRONOMY & ASTROPHYSICS,469(1),331-337.
MLA Jiang YC,et al."The H-alpha surges and EUV jets from magnetic flux emergences and cancellations".ASTRONOMY & ASTROPHYSICS 469.1(2007):331-337.
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