中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Investigation of intergranular bright points from the New Vacuum Solar Telescope

文献类型:期刊论文

作者Ji, Kai-Fan1; Xiong, Jian-Ping1,2,3; Xiang YY(向永源)4; Feng, Song1,2,3; Deng, Hui1; Wang F(王锋)1,4; Yang, Yun-Fei1,2,3
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2016-05-01
卷号16期号:5
ISSN号1674-4527
关键词techniques: image processing Sun: photosphere methods: data analysis methods: statistical
通讯作者Yang, YF
产权排序第四完成单位
英文摘要Six high-resolution TiO-band image sequences from the New Vacuum Solar Telescope (NVST) are used to investigate the properties of intergranular bright points (igBPs). We detect the igBPs using a Laplacian and morphological dilation algorithm (LMD) and automatically track them using a threedimensional segmentation algorithm, and then investigate the morphologic, photometric and dynamic properties of igBPs in terms of equivalent diameter, intensity contrast, lifetime, horizontal velocity, diffusion index, motion range and motion type. The statistical results confirm previous studies based on G-band or TiO-band igBPs from other telescopes. These results illustrate that TiO data from the NVST are stable and reliable, and are suitable for studying igBPs. In addition, our method is feasible for detecting and tracking igBPs with TiO data from the NVST. With the aid of vector magnetograms obtained from the Solar Dynamics Observatory/Helioseismic and Magnetic Imager, the properties of igBPs are found to be strongly influenced by their embeddedmagnetic environments. The areal coverage, size and intensity contrast values of igBPs are generally larger in regions with higher magnetic flux. However, the dynamics of igBPs, including the horizontal velocity, diffusion index, ratio of motion range and index of motion type are generally larger in the regions with lower magnetic flux. This suggests that the absence of strong magnetic fields in the medium makes it possible for the igBPs to look smaller and weaker, diffuse faster, and move faster and further along a straighter path.
学科主题Astronomy & Astrophysics
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]G-BAND BRIGHT ; MAGNETIC-FIELD STRENGTHS ; UV IRRADIANCE VARIATIONS ; ACTIVE-REGION ; QUIET SUN ; FLUX TUBES ; INTERNETWORK AREAS ; DYNAMICS ; ATMOSPHERE ; PHOTOSPHERE
收录类别SCI
原文出处http://iopscience.iop.org/article/10.1088/1674-4527/16/5/078/meta
语种英语
WOS记录号WOS:000375793000009
源URL[http://ir.ynao.ac.cn/handle/114a53/9591]  
专题云南天文台_抚仙湖太阳观测站
云南天文台_其他
作者单位1.Faculty of Information Engineering and Automation/Yunnan Key Laboratory of Computer Technology Application, Kunming University of Science and Technology, Kunming 650500, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Ministry of Education, Nanjing 210093, China
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式
GB/T 7714
Ji, Kai-Fan,Xiong, Jian-Ping,Xiang YY,et al. Investigation of intergranular bright points from the New Vacuum Solar Telescope[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(5).
APA Ji, Kai-Fan.,Xiong, Jian-Ping.,Xiang YY.,Feng, Song.,Deng, Hui.,...&Yang, Yun-Fei.(2016).Investigation of intergranular bright points from the New Vacuum Solar Telescope.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(5).
MLA Ji, Kai-Fan,et al."Investigation of intergranular bright points from the New Vacuum Solar Telescope".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.5(2016).

入库方式: OAI收割

来源:云南天文台

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