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INVESTIGATION OF THICKNESS AND ELECTRICAL RESISTIVITY OF THE CURRENT SHEETS IN SOLAR ERUPTIONS
Lin J(林隽)1,2; Li, J3; Ko, YK2; Raymond, JC2; Lin, J (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ China, POB 110, Kunming 650011, Yunnan, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL
2009-03-10
Volume693Issue:2Pages:1666-1677
DOI10.1088/0004-637X/693/2/1666
Contribution Rank第1完成单位
Indexed BySCI
KeywordDiffusion Sun: Coronal Mass Ejections (Cmes) Sun: Flares Sun: Magnetic Fields Turbulence
AbstractA discussion of the thickness of current sheets in solar eruptions, d, led Lin et al. in 2007 to estimate very large values for the effective resistivity, eta(e). Here, we address some questions raised by that paper. We apply the limb synoptic map technique and find d between 5.0 x 10(4) and 4.6 x 10(5) km, increasing with both time and altitude. The possibility that large apparent d and eta(e) result from projection effects is examined and rejected. We derive theoretical scaling laws relating d to other observables that corroborate this conclusion and thus help confine both d and eta(e) to a reasonable range. The possible impact of our results on the existing models of particle acceleration in reconnecting current sheets is also briefly discussed.
Funding OrganizationMinistry of Science and Technology of China [2006CB806303] ; National Natural Science Foundation of China [10873030, 40636031] ; Chinese Academy of Sciences [KJCX2-YW-T04] ; NASA [NNX07AL72G]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
Archive Date2009-03-11
WOS IDWOS:000264095100057
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; RECONNECTING CURRENT SHEETS ; MAGNETIC RECONNECTION ; PARTICLE-ACCELERATION ; TEARING MODE ; FIELD ; FLARES ; WIND ; TURBULENCE ; MECHANISM
Citation statistics
Cited Times:45[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6146
Collection太阳物理研究组
Corresponding AuthorLin, J (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ China, POB 110, Kunming 650011, Yunnan, Peoples R China.
Affiliation1.National Astronomical Observatories of China/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China
2.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
3.Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lin J,Li, J,Ko, YK,et al. INVESTIGATION OF THICKNESS AND ELECTRICAL RESISTIVITY OF THE CURRENT SHEETS IN SOLAR ERUPTIONS[J]. ASTROPHYSICAL JOURNAL,2009,693(2):1666-1677.
APA Lin J,Li, J,Ko, YK,Raymond, JC,&Lin, J .(2009).INVESTIGATION OF THICKNESS AND ELECTRICAL RESISTIVITY OF THE CURRENT SHEETS IN SOLAR ERUPTIONS.ASTROPHYSICAL JOURNAL,693(2),1666-1677.
MLA Lin J,et al."INVESTIGATION OF THICKNESS AND ELECTRICAL RESISTIVITY OF THE CURRENT SHEETS IN SOLAR ERUPTIONS".ASTROPHYSICAL JOURNAL 693.2(2009):1666-1677.
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