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Dynamic solar atmosphere revealed via Doppler velocity measurements of multispectral lines 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)1; Xiang C(向超)1,2
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2025-07
卷号540期号:3页码:2641-2652
关键词techniques: spectroscopic eclipses Sun: atmosphere Sun: corona
ISSN号0035-8711
DOI10.1093/mnras/staf820
产权排序第1完成单位
文献子类Article
英文摘要Total solar eclipses provide a special opportunity to reveal a dynamic solar atmosphere extending from photosphere to inner corona. We analysed the spectroscopic observations obtained during the 2013 total solar eclipse using a fibre-based spectrometer in the wavelength range 5162-5325 & Aring;. We investigated the complex Doppler velocities exhibited in the sky, flash, and coronal spectra. The field-of-view adjacent to the solar east limb (similar to 0.04 R-circle dot), shifted from 60(degrees)N to 35(degrees)N, introducing a latitude-dependent solar rotation component into the observed Doppler velocities. This component was reflected in the sky spectra obtained during the final crescent phase, where scattered light from the local region on solar east limb carried the Doppler signature of rotation near 60(degrees)N and 50(degrees)N. We estimated rotation baselines at the relevant latitudes under solid-body rotation. The baselines were considered when analysing the intrinsic velocity of local plasma motions, as exhibited in the flash and coronal spectra. After accounting for solar rotation, photospheric emission lines appeared nearly static, chromospheric emission lines exhibited additional blueshifts between -1 and -3 km s(-1) at all latitudes, the coronal emission line (Fe xiv 5303 & Aring;) showed an additional blueshift of approximately -2 km s(-1) in the quiet inner corona at higher latitude, and a maximum additional blueshift of about -6 km s(-1) at low latitude (35(degrees)N) at a helmet streamer base. These results offer insight into local plasma dynamics across the solar atmospheric layers from a side-on perspective.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
WOS关键词DIFFERENTIAL ROTATION ; LIGHT-SCATTERING ; EMISSION-LINES ; CORONA ; SHIFTS ; FLASH ; SPECTRUM ; SUN
资助项目Chinese Academy of Sciences[XDB0560000]; Strategic Priority Research Program of the Chinese Academy of Sciences[12127901]; Strategic Priority Research Program of the Chinese Academy of Sciences[12473054]; National Science Foundation of China (NSFC)[202205AG070009]; Yunnan Key Laboratory of Solar Physics and Space Science
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001506986700001
出版者OXFORD UNIV PRESS
资助机构Chinese Academy of Sciences[XDB0560000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[12127901, 12473054] ; National Science Foundation of China (NSFC)[202205AG070009] ; Yunnan Key Laboratory of Solar Physics and Space Science
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28366]  
专题无名山观测站
通讯作者Zhu BQ(朱冰茜); Xu Z(徐稚)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式
GB/T 7714		 Zhu BQ,Xu Z,Xiang C. Dynamic solar atmosphere revealed via Doppler velocity measurements of multispectral lines during the 2013 total solar eclipse[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2025,540(3):2641-2652.
APA 朱冰茜,徐稚,&向超.(2025).Dynamic solar atmosphere revealed via Doppler velocity measurements of multispectral lines during the 2013 total solar eclipse.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,540(3),2641-2652.
MLA 朱冰茜,et al."Dynamic solar atmosphere revealed via Doppler velocity measurements of multispectral lines during the 2013 total solar eclipse".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 540.3(2025):2641-2652.

入库方式： OAI收割

来源：云南天文台

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