The Flash Spectrum Analysis during the 2013 Total Solar Eclipse
文献类型：期刊论文
| 作者 | Zhu BQ(朱冰茜)1,2 ; Xu Z(徐稚)2; Xiang C(向超)1,2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2025-08-01 |
| 卷号 | 25期号:8 |
| 关键词 | techniques: spectroscopic eclipses Sun: chromosphere Sun: photosphere Sun: general |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/addd7c |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | During the total solar eclipse of 2013 November 3, a fiber-based spectrometer captured the flash spectrum within the wavelength range of 5162-5325 & Aring;, with the field-of-view positioned approximately 0.04 R circle dot above the east limb, near the second-contact point. This placement near the innermost corona, together with the nearby Baily's beads, enabled the detection of emission lines from the photosphere, lower chromosphere, and corona in the same spectral frame. The higher field-of-view made the coronal line Fe xiv 5303 & Aring; more visible, while the reduced intensity of photospheric and lower chromospheric light, caused by terrestrial scattering, also influenced the observed spectrum. Meanwhile, we selected 18 flash emission lines to measure the ratio of the relative line height of the flash emission line to the relative line depth of the corresponding solar absorption line. This ratio serves as a diagnostic of the source function, minimizing opacity effects. Comparison of disk and flash spectra shows that this ratio increases for spectral lines at greater formation heights, being strongest for chromospheric lines (particularly Fe II), moderate for photospheric low-FIP lines, and weakest for photospheric neutral lines. This trend suggests a rising source function with formation height, potentially linked to increasing electron temperatures or influenced by factors observed in flash spectra near active regions as reported in earlier studies. |
| 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 | EMISSION-LINES ; FE |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12473054]; National Natural Science Foundation of China (NSFC)[12127901]; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000]; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]; Yunnan Fundamental Research Projects[202105AC160085] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001520480000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China (NSFC)[12473054, 12127901] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] ; Yunnan Fundamental Research Projects[202105AC160085] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28389]  |
| 专题 | 无名山观测站 |
| 通讯作者 | Xu Z(徐稚) |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; |
| 推荐引用方式 GB/T 7714 | Zhu BQ,Xu Z,Xiang C. The Flash Spectrum Analysis during the 2013 Total Solar Eclipse[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2025,25(8). |
| APA | 朱冰茜,徐稚,&向超.(2025).The Flash Spectrum Analysis during the 2013 Total Solar Eclipse.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,25(8). |
| MLA | 朱冰茜,et al."The Flash Spectrum Analysis during the 2013 Total Solar Eclipse".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 25.8(2025). |
入库方式： OAI收割
来源：云南天文台
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