The Alignment of High-resolution Solar Prominence Images Observed by the New Vacuum Solar Telescope

doi:10.3847/1538-4357/ad9006

YNAO OpenIR > 抚仙湖太阳观测和研究基地

	The Alignment of High-resolution Solar Prominence Images Observed by the New Vacuum Solar Telescope
	Cai YF(蔡云芳)1,2 ; Xiang YY(向永源)1,2 ; Ji KF(季凯帆)1
发表期刊	ASTROPHYSICAL JOURNAL
	2024-12-01
卷号	977 期号:2
DOI	10.3847/1538-4357/ad9006
产权排序	第1完成单位
收录类别	SCI
摘要	High spatial resolution observation of solar prominence is an important observation subject of the New Vacuum Solar Telescope (NVST). While the current level of observation and image reconstruction technologies for solar prominences are advanced, a significant challenge remains in achieving high-precision alignment among high-resolution prominence images observed at different times and different off-bands. Existing alignment approaches either become ineffective or yield low accuracy, and always require manual intervention during the alignment. These limitations are largely due to the stronger edge gradient and lower structural contrast of the prominence images compared with the solar surface ones. In response to this challenge, our study aims to develop an effective and robust algorithm for high-precision alignment of the prominence images. We thoroughly consider the unique structural characteristics of prominence images and the specific application conditions of various alignment algorithms. Consequently, we propose a comprehensive alignment method that incorporates the optical flow field of the solar surface, the gradient of the solar edge, and the cross-correlation within the solar prominence region. This method is designed to accurately determine the movement displacements among the prominence images. Our results demonstrate that this alignment method excels in both accuracy and robustness, making it well-suited for handling the diverse postures of solar prominence images captured by the NVST.
资助项目	Natural Science Foundation of China (NSFC)[12273110]; Natural Science Foundation of China (NSFC)[12373115]; Natural Science Foundation of China (NSFC)[12073077]; Natural Science Foundation of China (NSFC)[11973088]; Yunnan Province XingDian Talent Support Program; Yunnan Top-notch Talent Training Support Program; Yunnan Fundamental Research Projects[202401AW07006]; Yunnan Fundamental Research Projects[202301AT070350]; The Yunnan Revitalization Talent Support Program Innovation Team Project[202405AS350012]; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]
项目资助者	Natural Science Foundation of China (NSFC)[12273110, 12373115, 12073077, 11973088] ; Yunnan Province XingDian Talent Support Program ; Yunnan Top-notch Talent Training Support Program ; Yunnan Fundamental Research Projects[202401AW07006, 202301AT070350] ; The Yunnan Revitalization Talent Support Program Innovation Team Project[202405AS350012] ; 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:001375955800001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	RECONSTRUCTION ; RECONNECTION
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/114a53/27856
专题	抚仙湖太阳观测和研究基地天文技术实验室
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming Yunnan 650216, People's Republic of China; 2.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming Yunnan 650216, 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	Cai YF,Xiang YY,Ji KF. The Alignment of High-resolution Solar Prominence Images Observed by the New Vacuum Solar Telescope[J]. ASTROPHYSICAL JOURNAL,2024,977(2).
APA	蔡云芳,向永源,&季凯帆.(2024).The Alignment of High-resolution Solar Prominence Images Observed by the New Vacuum Solar Telescope.ASTROPHYSICAL JOURNAL,977(2).
MLA	蔡云芳,et al."The Alignment of High-resolution Solar Prominence Images Observed by the New Vacuum Solar Telescope".ASTROPHYSICAL JOURNAL 977.2(2024).

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