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Three-dimensional distribution of the escape photons of H alpha flares
Sun MG(孙明国)1,3; Qu ZQ(屈中权)1; Xu Z(徐稚)2; Zhang XY(张霄宇)1; Xu CL(胥成林)1,3; Wang S(王帅)1,3; Jin CL(金春兰)1,3; Sun, MG (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2006
卷号6期号:1页码:87-95
DOI10.1088/1009-9271/6/1/010
产权排序第1完成单位
收录类别SCI
关键词Line : Formation Radiative Transfer Sun : Flares
摘要A technique for obtaining a three-dimensional distribution of received photons in Ha flares in the solar atmosphere is presented. It is well known that during flares hydrogen atoms in the chromosphere and photosphere are excited (even ionized) by the downward heating of non-thermal particles and then emit Ha. photons. We trace back these Ha photons to their original layers by use of the contribution function in the theory of spectral line formation, and so acquire their three-dimensional (3D) distribution. This technique is applied to the two-ribbon flare of 2002 January 20. The atmospheric models are obtained by fitting the "quasi-profiles" with the help of the generally used model atmospheres. Since the variety of the 3D images reflects the response of the atmospheric layers to the impact of energy transport, an analysis of the development of the flare is given through a comparison of the 3D images with the 2D temperature distribution.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1009-9271
URL查看原文
归档日期2006-03-03
WOS记录号WOS:000235501700010
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LINE FORMATION PROCESS ; WHITE-LIGHT FLARE ; SOLAR CHROMOSPHERE ; NONTHERMAL ELECTRONS ; SEMIEMPIRICAL MODELS ; OPTICAL-SPECTRA ; ATMOSPHERES ; DIAGNOSTICS ; IONIZATION ; SIGNATURES
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6094
专题太阳物理研究组
通讯作者Sun, MG (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Astronomical Observatory/National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011
2.Astronomical Department of Astronomy, Nanjing University, Nanjing 210093
3.Graduate University of the Chinese Academy of Sciences, Beijing 100049
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Sun MG,Qu ZQ,Xu Z,et al. Three-dimensional distribution of the escape photons of H alpha flares[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(1):87-95.
APA Sun MG.,Qu ZQ.,Xu Z.,Zhang XY.,Xu CL.,...&Sun, MG .(2006).Three-dimensional distribution of the escape photons of H alpha flares.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(1),87-95.
MLA Sun MG,et al."Three-dimensional distribution of the escape photons of H alpha flares".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.1(2006):87-95.
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