Magnetic flux participation in solar surface magnetism during solar cycle 24
文献类型：期刊论文
| 作者 | Jin, Chun-Lan; Wang, Jing-Xiu |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 19期号:5页码:14 |
| ISSN号 | 1674-4527 |
| 关键词 | Sun: magnetic fields Sun: dynamo Sun: photosphere sunspots |
| DOI | 10.1088/1674-4527/19/5/69 |
| 英文摘要 | This study aims at investigating surface magnetic flux participation among different types of magnetic features during solar cycle 24. State-of-the-art observations from SDO/HMI and Hinode/SOT are combined to form a unique database in the interval from April 2010 to October 2015. Unlike previous studies, the statistics presented in this paper are feature-detection-based. More than 20 million magnetic features with relatively large scale, such as sunspot/pore, enhanced and quiet networks, are automatically detected and categorized from HMI observations, and the internetwork features are identified from SOT/SP observations. The total flux from these magnetic features reaches 5.9 x 10(22) Mx during solar minimum and 2.4 x 10(23) Mx in solar maximum. Flux occupation from the sunspot/pore region is 29% in solar maximum. Enhanced and quiet networks contribute 18% and 21% flux during the solar minimum, and 50% and 9% flux in the solar maximum respectively. The internetwork field contributes over 55% of flux in the solar minimum, and its flux contribution exceeds that of sunspot/pore features in the solar maximum. During the solar active condition, the sunspot field increases its area but keeps constant flux density of about 150 G, while the enhanced network follows the sunspot number variation showing increasing flux density and area, but the quiet network displays decreasing area and somewhat increasing flux density of about 6%. The origin of the quiet network is not known exactly, but is suggestive of representing the interplay between mean-field and local dynamos. The source, magnitude and possible importance of 'hidden flux' are discussed in some detail. |
| WOS关键词 | OPTICAL TELESCOPE ; HINODE ; REGIONS ; ELEMENTS ; NETWORK ; NANOFLARES ; EMERGENCE ; DEPTHS ; SYSTEM ; FIELDS |
| 资助项目 | National Natural Science Foundation of China[11373004] ; National Natural Science Foundation of China[11573038] ; National Natural Science Foundation of China[11533008] |
| 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:000467595300007 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/26159]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Jin, Chun-Lan |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Chun-Lan,Wang, Jing-Xiu. Magnetic flux participation in solar surface magnetism during solar cycle 24[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(5):14. |
| APA | Jin, Chun-Lan,&Wang, Jing-Xiu.(2019).Magnetic flux participation in solar surface magnetism during solar cycle 24.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(5),14. |
| MLA | Jin, Chun-Lan,et al."Magnetic flux participation in solar surface magnetism during solar cycle 24".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.5(2019):14. |
入库方式： OAI收割
来源：国家天文台
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