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A quantitative analysis of the surge of March 19, 1989
Li KJ(李可军); Gu XM(顾啸马); Zhong SH(钟树华)
Source PublicationSOLAR PHYSICS
1996-09-01
Volume168Issue:1Pages:91-103
Contribution Rank第1完成单位
Indexed BySCI
AbstractA large surge event appearing in AR 5395 was observed at the Yunnan Observatory on March 19, 1989. H alpha spectral profiles of the event are interpreted by using a two-cloud model and the contours of three parameters: excitation temperature, T-exc, microturbulent velocity, V-t, and column density of hydrogen atoms at the second level, N-0,N-2, are obtained, respectively. The question about the unique feature of the solution obtained by the fitting method is also discussed. The results show that the surge is composed of some conglomerated materials with higher temperature and density; the mass ejection is probably intermittent. Neither T-exc, nor N-0,N-2 vary with the height over the solar limb but decrease from the center to the periphery of the surge. V-t varies from 10 to 30 km s(-1) and decreases with height. Some other important parameters, such as electron density, n(e), and electron pressure, P-e, etc., have also been estimated. In the surge, with N-0,N-2 about 2.0 x 10(12) cm(-2) and T-exc about 8500 K on average, we obtained n(e) = 1.80 x 10(10) cm(-3) and P-e = 0.023 dyn cm(-2). The energy variations of the surge during the ascending phase are estimated.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0038-0938
URL查看原文
WOS IDWOS:A1996VK88100007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordH-ALPHA ; C-IV ; EVOLUTION ; FLARE ; LOOPS ; LINES
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6022
Collection太阳物理研究组
Corresponding AuthorLi KJ(李可军)
AffiliationYunnan Observatory, Chinese Academy of Sciences, YN65001l, PR. China
Recommended Citation
GB/T 7714
Li KJ,Gu XM,Zhong SH. A quantitative analysis of the surge of March 19, 1989[J]. SOLAR PHYSICS,1996,168(1):91-103.
APA Li KJ,Gu XM,&Zhong SH.(1996).A quantitative analysis of the surge of March 19, 1989.SOLAR PHYSICS,168(1),91-103.
MLA Li KJ,et al."A quantitative analysis of the surge of March 19, 1989".SOLAR PHYSICS 168.1(1996):91-103.
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