The Co-alignment of Winged H alpha Data Observed by the New Vacuum Solar Telescope* | |
Cai YF(蔡云芳)2; Yang, Xu1; Xiang YY(向永源)2; Yan XL(闫晓理)2; Jin ZY(金振宇)2; Liu H(刘辉)2; Ji KF(季凯帆)2 | |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
2022-06-01 | |
卷号 | 22期号:6 |
关键词 | Sun: atmosphere methods: data analysis techniques: imaging spectroscopy techniques: image processing |
ISSN号 | 1674-4527 |
DOI | 10.1088/1674-4527/ac69b9 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | The New Vacuum Solar Telescope (NVST) has been releasing its novel winged H alpha data (WHD) since 2021 April, namely the H alpha imaging spectroscopic data. Compared with the prior released version, the new data are further co-aligned among the off-band images and packaged into a standard solar physics community format. In this study, we illustrate the alignment algorithm used by the novel WHD, which is mainly based on the optical flow method to obtain the translation offset between the winged images. To quantitatively evaluate the alignment results of two images with different similarities, we calculate the alignment accuracies between the images of different off-band and line center, respectively. The result shows that our alignment algorithm could reach up to the accuracy of about 0.'' 1 when the off-band of winged image is lower than 0.6 angstrom. In addition, we introduce the final product of the WHD in detail, which can provide convenience for the solar physicists to use high-resolution H alpha imaging spectroscopic data of NVST. |
学科主题 | 天文学 ; 天体物理学 ; 实测天体物理学 ; 太阳与太阳系 ; 计算机科学技术 ; 计算机应用 ; 计算机图象处理 |
URL标识 | 查看原文 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
资助项目 | National Natural Science Foundation of China (NSFC)[11903081] ; National Natural Science Foundation of China (NSFC)[12073077] ; National Natural Science Foundation of China (NSFC)[11973088] ; National Natural Science Foundation of China (NSFC)[11873027] ; National Natural Science Foundation of China (NSFC)[U2031140] ; National Natural Science Foundation of China (NSFC)[11833010] ; National Natural Science Foundation of China (NSFC)[U1831210] ; Yunnan Natural Science Foundation of China[201901U070092] ; CAS Light of West China Program[Y9XB015] ; CAS Light of West China Program[Y9XB019] |
WOS关键词 | MULTIWAVELENGTH |
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:000800354300001 |
资助机构 | National Natural Science Foundation of China (NSFC)[11903081, 12073077, 11973088, 11873027, U2031140, 11833010, U1831210] ; Yunnan Natural Science Foundation of China[201901U070092] ; CAS Light of West China Program[Y9XB015, Y9XB019] |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25319] |
专题 | 云南天文台_抚仙湖太阳观测站 |
通讯作者 | Ji KF(季凯帆) |
作者单位 | 1.Big Bear Solar Observatory, New Jersey Institute of Technology, 40386 North Shore Lane, Big Bear City, CA, 92314, USA 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; jkf@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Cai YF,Yang, Xu,Xiang YY,et al. The Co-alignment of Winged H alpha Data Observed by the New Vacuum Solar Telescope*[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2022,22(6). |
APA | Cai YF.,Yang, Xu.,Xiang YY.,Yan XL.,Jin ZY.,...&Ji KF.(2022).The Co-alignment of Winged H alpha Data Observed by the New Vacuum Solar Telescope*.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,22(6). |
MLA | Cai YF,et al."The Co-alignment of Winged H alpha Data Observed by the New Vacuum Solar Telescope*".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 22.6(2022). |
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