Spectropolarimetry of Fraunhofer Lines in Local Upper Solar Atmosphere
文献类型：期刊论文
| 作者 | Qu ZQ(屈中权)3,4 ; Chang L(常亮)3,4; Dun GT(敦广涛)4; Cheng XM(程向明)4; Fang, C.2; Xu Z(徐稚)4; Yuan, D.1; Deng LH(邓林华)4; Zhang XY(张霄宇)4
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2024-10-01 |
| 卷号 | 974期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad68f6 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | 天文学 ; 太阳与太阳系 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | F-CORONA ; POLARIZATION ; BRIGHTNESS ; LIGHT |
| 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] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001326869300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | 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] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27627]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 云南天文台_射电天文研究组 云南天文台_办公室 无名山观测站 |
| 作者单位 | 1.Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, Guangdong, People's Republic of China 2.School of Astronomy and Space Science, Nanjing University, Hankou Road, Nanjing, Jiangsu, People's Republic of China; 3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Yuquan road, Chaoyang district, Beijing, People's Republic of China; 4.Yunnan Astronomical Observatories, CAS, Tinwentai road, Kunming, Yunnan 650216, People's Republic of China; |
| 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). |
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来源：云南天文台
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