Spectropolarimetry of Fraunhofer Lines in Local Upper Solar Atmosphere

doi:10.3847/1538-4357/ad68f6

YNAO OpenIR > 抚仙湖太阳观测和研究基地

	Spectropolarimetry of Fraunhofer Lines in Local Upper Solar Atmosphere
	Qu ZQ(屈中权)1,2 ; Chang L(常亮)1,2 ; Dun GT(敦广涛)1 ; Cheng XM(程向明)1 ; Fang, C.3; Xu Z(徐稚)1 ; Yuan, D.4; Deng LH(邓林华)1 ; Zhang XY(张霄宇)1
发表期刊	ASTROPHYSICAL JOURNAL
	2024-10-01
卷号	974 期号:1
DOI	10.3847/1538-4357/ad68f6
产权排序	第1完成单位
收录类别	SCI
摘要	Spectropolarimetric results of Fraunhofer lines between 516.3 and 532.6 nm are presented in local upper solar chromosphere and inner corona below a height of about 0.04 solar radius above the solar limb. The data were acquired on 2013 November 3 during a total solar eclipse in Gabon by the prototype Fiber Arrayed Solar Optical Telescope. It is found that the linear polarizations of the Fraunhofer lines in these layers depend strongly on specific spectral lines and positions. A Fraunhofer line at Mg i b 1518.4 nm can have a polarization amplitude up to 0.36% with respect to the continuum polarization level, while polarizations of lines like Fe i/Cr i524.7 nm are often merged in the noise level of 6.0 x 10-4. The polarizations of the Fraunhofer lines, like the emission ones and the continuum, increase with height as a whole trend, and their amplitudes can be close to those of emission ones yielded in close positions, and generally larger than those of the continuum. Rotations of the polarization directions of the Fraunhofer lines are often accompanied by variations in their polarization amplitudes and profile shapes. It is also judged from these polarimetric properties, along with other evidence, that neutral metal atoms exist in these atmospheric layers.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000]; National Science Foundation of China (NSFC)[11078005]; National Science Foundation of China (NSFC)[U1931206]; Yunnan Revitalization Talent Support Program, Innovation Team Project[202405AS350012]; Yunnan Fundamental Research Projects[202301AV070007]; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]
项目资助者	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; National Science Foundation of China (NSFC)[11078005, U1931206] ; Yunnan Revitalization Talent Support Program, Innovation Team Project[202405AS350012] ; Yunnan Fundamental Research Projects[202301AV070007] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]
语种	英语
学科领域	天文学 ; 太阳与太阳系
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:001326869300001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	F-CORONA ; POLARIZATION ; BRIGHTNESS ; LIGHT
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27627
专题	抚仙湖太阳观测和研究基地射电天文研究组综合办公室无名山观测站
作者单位	1.Yunnan Astronomical Observatories, CAS, Tinwentai road, Kunming, Yunnan 650216, People's Republic of China; 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Yuquan road, Chaoyang district, Beijing, People's Republic of China; 3.School of Astronomy and Space Science, Nanjing University, Hankou Road, Nanjing, Jiangsu, People's Republic of China; 4.Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, Guangdong, People's Republic of China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Qu ZQ,Chang L,Dun GT,et al. Spectropolarimetry of Fraunhofer Lines in Local Upper Solar Atmosphere[J]. ASTROPHYSICAL JOURNAL,2024,974(1).
APA	屈中权.,常亮.,敦广涛.,程向明.,Fang, C..,...&张霄宇.(2024).Spectropolarimetry of Fraunhofer Lines in Local Upper Solar Atmosphere.ASTROPHYSICAL JOURNAL,974(1).
MLA	屈中权,et al."Spectropolarimetry of Fraunhofer Lines in Local Upper Solar Atmosphere".ASTROPHYSICAL JOURNAL 974.1(2024).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Spectropolarimetry o（1028KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文