| Differential Rotation of the Chromosphere in the He I Absorption Line | |
Li KJ(李可军)1,2,3 ; Xu JC(徐景晨)1; Xie JL(谢婧岚)1,3; Feng, W.4
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| 发表期刊 | The Astrophysical Journal Letters
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| 2020-12-01 | |
| 卷号 | 905期号:1页码:8 |
| DOI | 10.3847/2041-8213/abcb84 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Solar rotation Solar chromosphere Solar activity |
| 摘要 | Differential rotation is the basis of the solar dynamo theory. Synoptic maps of He I intensity from Carrington rotations 2032–2135 are utilized to investigate the differential rotation of the solar chromosphere in the He I absorption line. The chromosphere is surprisingly found to rotate faster than the photosphere below it. The anomalous heating of the chromosphere and corona has been a big problem in modern astronomy. It is speculated that the small-scale magnetic elements with magnetic flux in the range of (2.9–32.0)?×?1018 Mx, which are anchored in the leptocline, heat the quiet chromosphere to present the anomalous temperature increase, causing it to rotate at the same rate as the leptocline. The differential of rotation rate in the chromosphere is found to be strengthened by strong magnetic fields, but in stark contrast, at the photosphere strong magnetic fields repress the differential of rotation rate. A plausible explanation is given for these findings. |
| 资助项目 | National Natural Science Foundation of China[11973085] ; National Natural Science Foundation of China[11903077] ; National Natural Science Foundation of China[11803086] ; National Natural Science Foundation of China[11703085] ; National Natural Science Foundation of China[11633008] ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; CAS Light of West China Program ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201912] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA202012] ; Chinese Academy of Sciences ; national project for large scale scientific facilities[2019YFA0405001] |
| 项目资助者 | National Natural Science Foundation of China[11973085, 11903077, 11803086, 11703085, 11633008] ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; CAS 'Light of West China' Program ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201912, KLSA202012] ; Chinese Academy of Sciences ; national project for large scale scientific facilities[2019YFA0405001] |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
| 文章类型 | Article |
| 出版者 | IOP PUBLISHING LTD |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 2041-8205 |
| URL | 查看原文 |
| WOS记录号 | WOS:000598109000001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | SUNS MAGNETIC-FIELD ; SOLAR |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/24013 |
| 专题 | 抚仙湖太阳观测和研究基地 |
| 通讯作者 | Feng, W. |
| 作者单位 | 1.Yunnan Observatories, CAS, Kunming 650011, People's Republic of China 2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China 3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, People's Republic of China 4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, People's Republic of China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Li KJ,Xu JC,Xie JL,et al. Differential Rotation of the Chromosphere in the He I Absorption Line[J]. The Astrophysical Journal Letters,2020,905(1):8. |
| APA | Li KJ,Xu JC,Xie JL,&Feng, W..(2020).Differential Rotation of the Chromosphere in the He I Absorption Line.The Astrophysical Journal Letters,905(1),8. |
| MLA | Li KJ,et al."Differential Rotation of the Chromosphere in the He I Absorption Line".The Astrophysical Journal Letters 905.1(2020):8. |
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| Differential Rotatio（1424KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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