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Post-flare loops of May 16, 1981 - Spectral analysis
Gu XM(顾啸马)1,2; Ding YJ(丁有济)2; Luo Z(罗智)2; Schmieder, B3; Gu, XM
Contribution Rank第2完成单位
Indexed BySCI
KeywordSun Flares Methods Data Analysis
AbstractWe present the analysis of Her spectra obtained during a two-ribbon flare observed on the solar disk on May 16, 1981 at Yunnan Observatory with the Spectra-Spectroheliograph (SSHG). The complicated asymmetric profiles produced by the post-flare loops overlying flare ribbons are analysed with a fast method based on the cloud model method. This method takes into account the bright background of the loops and allows computation of the physical quantities of loops crossed by the slit: velocity field, optical thickness, source function and Doppler width. Using the scanning spectra of the region, we obtain 2-D maps of these parameters. The validity of the method used is compared with other methods and the sensitivity of parameters to solution is discussed in details. The results obtained with this method are compared with those given by Heinzel et al. (1992) using a fully non-LTE approach.
Subject AreaAstronomy & Astrophysics
WOS IDWOS:A1997XR02900029
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorGu, XM
Affiliation1.CCAST (World Laboratory), P.O. Box 8730, Beijing, 100080
2.Yunnan Observatory, P.O. Box 110, Kunming, YN 650011, China
3.Observatoire de Paris- Meudon, DASOP, URA 2080, F-92195 Meudon Principal Cedex, France
Recommended Citation
GB/T 7714
Gu XM,Ding YJ,Luo Z,et al. Post-flare loops of May 16, 1981 - Spectral analysis[J]. ASTRONOMY & ASTROPHYSICS,1997,324(1):289-297.
APA Gu XM,Ding YJ,Luo Z,Schmieder, B,&Gu, XM.(1997).Post-flare loops of May 16, 1981 - Spectral analysis.ASTRONOMY & ASTROPHYSICS,324(1),289-297.
MLA Gu XM,et al."Post-flare loops of May 16, 1981 - Spectral analysis".ASTRONOMY & ASTROPHYSICS 324.1(1997):289-297.
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