A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments | |
Li, Yun-Li3; Zheng, Sheng3; Deng LH(邓林华)2; Zeng, Shu-Guang3; Lin, Gang-Hua1 | |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
2021-11 | |
卷号 | 21期号:9 |
关键词 | Sun filaments prominences Sun evolution Sun activity |
ISSN号 | 1674-4527 |
DOI | 10.1088/1674-4527/21/9/238 |
产权排序 | 第2完成单位 |
文献子类 | Article |
英文摘要 | Solar filaments, hypothermia and dense structures suspended in the solar corona are formed above the magnetic polarity inversion line. Polar crown filaments (PCFs) at high-latitude regions of the Sun are of profound significance to the periodic variation of solar activities. In this paper, we statistically analyze PCFs by using full disk H alpha data from 1912 to 2018, which were obtained by Kodaikanal Solar Observatory (KODA, India), National Solar Observatory (NSO, USA), Kanzelhohe Solar Observatory (KSO, Austria), Big Bear Solar Observatory (BBSO, USA), and Huairou Solar Observing Station (HSOS, China). We first manually identify PCFs from every solar image based on the centennial data, and record the latitude and other features corresponding to the PCFs. Then we plot the PCF latitude distribution as a function of time, which clearly shows that PCFs rush to the poles at the ascending phase of each solar cycle. Our results show that the filaments drift toward mid-latitude covering solar cycle 15 to 24 after the PCFs reach the highest latitudes. The poleward migration rates of PCFs are calculated in ten solar cycles, and the range is about 0.12 degree to 0.50 degree per Carrington Rotation (CR). We also investigate the north-south (N-S) asymmetry of migration rates and the normalized N-S asymmetry index. |
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 |
资助项目 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U2031202] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1531247] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1731124] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505-04] ; special foundation work of the Ministry of Science and Technology of China[2014FY120300] |
WOS关键词 | MAGNETIC-FIELD ; LATITUDE MIGRATION ; CYCLE ; PROMINENCES ; REVERSAL ; SUNSPOTS ; SUN |
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:000714219500001 |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U2031202, U1531247, U1731124] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505-04] ; special foundation work of the Ministry of Science and Technology of China[2014FY120300] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24653] |
专题 | 云南天文台_抚仙湖太阳观测站 |
通讯作者 | Zheng, Sheng |
作者单位 | 1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 3.Center of Astronomy and Space Science, China Three Gorges University, Yichang 443002, China; |
推荐引用方式 GB/T 7714 | Li, Yun-Li,Zheng, Sheng,Deng LH,et al. A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(9). |
APA | Li, Yun-Li,Zheng, Sheng,Deng LH,Zeng, Shu-Guang,&Lin, Gang-Hua.(2021).A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(9). |
MLA | Li, Yun-Li,et al."A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.9(2021). |
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