Irregular Spatial Distributions of Spectral Line Parameters in the Middle Solar Chromosphere Revealed from Analysis of Solar Flash Mg i b (2) Spectra
文献类型:期刊论文
作者 | Jin YH(金宇航)1,2; Qu ZQ(屈中权)1,2; Xu Z(徐稚)1; Dun GT(敦广涛)1; Chang L(常亮)1; Cheng XM(程向明)1; Zhang XY(张霄宇)1,2; Deng LH(邓林华)1; Peng Y(彭洋)1,2 |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
出版日期 | 2022-08-01 |
卷号 | 22期号:8 |
ISSN号 | 1674-4527 |
关键词 | Sun: atmosphere Sun: chromosphere Sun: fundamental parameters |
DOI | 10.1088/1674-4527/ac7519 |
产权排序 | 第2完成单位 |
文献子类 | Article |
英文摘要 | This paper presents the analytical results of solar Mg i b (2) flash spectra, obtained by the prototype Fiber Arrayed Solar Optic Telescope in process of the 2013 Gabon total solar eclipse. The analysis reveals irregular distributions of the spectral line parameters like ratio of line source function to continuum one beta, ratio of line emissivity to continuum emissivity zeta, ratio of the continuum opacity to the line opacity r (0), line center optical depth tau (0), the line width Delta lambda ( D ), and the line-of-sight velocity v (los), while the approximately spherical symmetry can be found in the maps of integrated line intensity and continuum intensity. These irregular distributions originate from those of line profile features like the maximum intensity, the line width and line center wavelength. It is also found from the recovered line center optical depth tau (0) that in the middle chromosphere, the optical depth is not small due to non-ignorable absorption and the long light path along the line-of-sight. Finally, we show that the excessive broadening of spectral lines can be due to co-existence of multiple radiative sources with different line-of-sight velocities unresolved in one detector pixel. |
学科主题 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
URL标识 | 查看原文 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
WOS关键词 | LTE MODEL ATMOSPHERES ; MAGNETIC-FIELDS |
资助项目 | National Natural Science Foundation of China (NSFC)[11527804] ; National Natural Science Foundation of China (NSFC)[U1931206] ; National Natural Science Foundation of China (NSFC)[11373065] ; National Natural Science Foundation of China (NSFC)[11078005] ; National Natural Science Foundation of China (NSFC)[10943002] ; National Natural Science Foundation of China (NSFC)[12003066] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:000830150600001 |
资助机构 | National Natural Science Foundation of China (NSFC)[11527804, U1931206, 11373065, 11078005, 10943002, 12003066] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25380] |
专题 | 云南天文台_光纤阵列太阳光学望远镜研究组 云南天文台_天体测量及应用研究组 云南天文台_抚仙湖太阳观测站 云南天文台_办公室 |
通讯作者 | Qu ZQ(屈中权) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China 2.School of Astronomy and Space Science, University of Chinese Academy Sciences, Beijing 100049, China; zqqu@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Jin YH,Qu ZQ,Xu Z,et al. Irregular Spatial Distributions of Spectral Line Parameters in the Middle Solar Chromosphere Revealed from Analysis of Solar Flash Mg i b (2) Spectra[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2022,22(8). |
APA | Jin YH.,Qu ZQ.,Xu Z.,Dun GT.,Chang L.,...&Peng Y.(2022).Irregular Spatial Distributions of Spectral Line Parameters in the Middle Solar Chromosphere Revealed from Analysis of Solar Flash Mg i b (2) Spectra.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,22(8). |
MLA | Jin YH,et al."Irregular Spatial Distributions of Spectral Line Parameters in the Middle Solar Chromosphere Revealed from Analysis of Solar Flash Mg i b (2) Spectra".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 22.8(2022). |
入库方式: OAI收割
来源:云南天文台
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