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Spectro-Imaging Polarimetry of the Local Corona During Solar Eclipse
Qu ZQ(屈中权)1,2; Dun GT(敦广涛)1; Chang L(常亮)1; Murray, G.3; Cheng XM(程向明)1; Zhang XY(张霄宇)1; Deng LH(邓林华)1; Qu, Z. Q.(Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China)
发表期刊SOLAR PHYSICS
2017-02-01
卷号292期号:2页码:37-50
DOI10.1007/s11207-017-1055-x
产权排序第1完成单位
收录类别SCI
关键词Polarization Sun Corona
摘要Results are presented from spectro-imaging polarimetry of radiation from the local solar corona during the 2013 total solar eclipse in Gabon. This polarimetric observation was performed from 516.3 nm to 532.6 nm using a prototype Fiber Arrayed Solar Optical Telescope (FASOT). A polarimetric noise level on the order of 10(-3) results from a reduced polarimetric optical switching demodulation (RPOSD) procedure for data reduction. It is revealed that the modality of fractional linear polarization profiles of the green coronal line shows a diversity, which may indicate complex mechanisms. The polarization degree can approach 3.2 % above the continuum polarization level on a scale of 1500 km, and the nonuniform spatial distribution in amplitude and polarization direction is found even within a small field of view of 7500 km. All of this implies that the coronal polarization is highly structured and complex even on a small scale.
项目资助者National Science Foundation of China (NSFC)(11373065, 11527804, 11078005, 10943002) ; Natural Scientific Foundation of Yunnan province(2010CD113)
语种英语
学科领域天文学
文章类型Article
ISSN0038-0938
URL查看原文
归档日期2017-02-17
WOS记录号WOS:000395398700008
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]EMISSION-LINE POLARIZATION ; STATISTICAL EQUILIBRIUM ; MAGNETIC SUBLEVELS ; FLASH SPECTRUM ; INTENSITY ; FASOT ; GREEN ; FIELD
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9992
专题光纤阵列太阳光学望远镜研究组
通讯作者Qu, Z. Q.(Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China)
作者单位1.Yunnan Astronomical Observatories, CAS, Kunming, China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing, P.R. China
3.Center for Advanced Instrumentation, Durham University, Durham, UK
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GB/T 7714
Qu ZQ,Dun GT,Chang L,et al. Spectro-Imaging Polarimetry of the Local Corona During Solar Eclipse[J]. SOLAR PHYSICS,2017,292(2):37-50.
APA Qu ZQ.,Dun GT.,Chang L.,Murray, G..,Cheng XM.,...&Qu, Z. Q..(2017).Spectro-Imaging Polarimetry of the Local Corona During Solar Eclipse.SOLAR PHYSICS,292(2),37-50.
MLA Qu ZQ,et al."Spectro-Imaging Polarimetry of the Local Corona During Solar Eclipse".SOLAR PHYSICS 292.2(2017):37-50.
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