Chinese sunspot drawings and their digitization - (IV) differential rotation profile determined from hand-drawing records | |
Luo, Xiao-Yu2; Peng Y(彭洋)2,3; Zheng, Sheng2; Zeng, Shu-Guang2; Deng LH(邓林华)1,3; Feng YL(冯永利)3; Tao JP(陶金萍)3 | |
刊名 | JOURNAL OF ASTROPHYSICS AND ASTRONOMY |
2021-10 | |
卷号 | 42期号:2 |
关键词 | Sun rotation-sunspots methods data analysis |
ISSN号 | 0250-6335 |
DOI | 10.1007/s12036-021-09766-8 |
产权排序 | 第2完成单位 |
文献子类 | Article |
英文摘要 | It is necessary to better understand the dynamic process of solar differential rotation. Here the hand-drawing sunspot group records from 1958 to 2015 of Yunnan Observatories (YNAO) are used to study the solar rotation profile. Firstly, the rotation profile in each solar cycle 19-23 is calculated. Secondly, the rotation parameters (equatorial rotation velocity A and differential gradient B) of YNAO are compared with the well-known earlier results. Finally, the rotation parameters in the northern and southern hemispheres during each solar cycle 19-23 are summarized. The main conclusions we reached are as follows: (1) The average difference of the equatorial rotation velocity and differential gradient, between YNAO sunspot and other sunspot datasets, are 0.09 and 0.4, respectively. (2) The magnitudes of the gradient B in the northern hemisphere are larger than that in the southern hemisphere at even-number cycles, and it will approximately reverse at odd-number cycles. |
学科主题 | 天文学 ; 太阳与太阳系 |
URL标识 | 查看原文 |
出版地 | C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA |
资助项目 | Research Fund for Excellent Dissertation of China Three Gorges University[2020SSPY138] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505 C 04] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1731124] ; 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)[U2031202] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11427901] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11873089] ; Youth Innovation Promotion Association CAS ; special foundation work of the Ministry of Science and Technology of China[2014FY120300] |
WOS关键词 | N-S ASYMMETRY ; WHITE-LIGHT IMAGES ; SOLAR ROTATION ; TERM VARIATIONS ; RATES ; OSCILLATION ; SUN |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | INDIAN ACAD SCIENCES |
WOS记录号 | WOS:000673128300001 |
资助机构 | Research Fund for Excellent Dissertation of China Three Gorges University[2020SSPY138] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505 C 04] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1731124, U1531247, U2031202, 11427901, 11873089] ; Youth Innovation Promotion Association CAS ; 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/114a53/24450] |
专题 | 云南天文台_太阳物理研究组 |
通讯作者 | Zeng, Shu-Guang |
作者单位 | 1.Chongqing University of Arts and Sciences, Chongqing, 402160, China 2.College of Science, China Three Gorges University, Yichang, 443002, China; 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; |
推荐引用方式 GB/T 7714 | Luo, Xiao-Yu,Peng Y,Zheng, Sheng,et al. Chinese sunspot drawings and their digitization - (IV) differential rotation profile determined from hand-drawing records[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2021,42(2). |
APA | Luo, Xiao-Yu.,Peng Y.,Zheng, Sheng.,Zeng, Shu-Guang.,Deng LH.,...&Tao JP.(2021).Chinese sunspot drawings and their digitization - (IV) differential rotation profile determined from hand-drawing records.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,42(2). |
MLA | Luo, Xiao-Yu,et al."Chinese sunspot drawings and their digitization - (IV) differential rotation profile determined from hand-drawing records".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 42.2(2021). |
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