| Height-dependent differential rotation of the solar atmosphere detected by CHASE | |
Rao, Shihao1,2; Li, Chuan1,2,3; Ding, Mingde1,2; Hong, Jie1,2; Chen, Feng1,2; Fang, Cheng1,2; Qiu, Ye1,2,3; Li, Zhen1,2; Chen, Pengfei1,2; Li KJ(李可军)4 ; Hao, Qi1,2; Guo, Yang1,2; Cheng, Xin1,2; Dai, Yu1,2; Peng, Zhixin1,2; You, Wei5; Yuan, Yuan5
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| 发表期刊 | NATURE ASTRONOMY
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| 2024 | |
| DOI | 10.1038/s41550-024-02299-4 |
| 产权排序 | 第4完成单位 |
| 收录类别 | SCI |
| 摘要 | Rotation is an intrinsic property of stars and provides essential constraints on their structure, formation, evolution and interaction with the interplanetary environment. The Sun provides a unique opportunity to explore stellar rotation from the interior to its atmosphere in great detail. We know that the Sun rotates faster at the equator than at the poles, but how this differential rotation behaves at different atmospheric layers within it is not yet clear. Here we extract the rotation curves of different layers of the solar photosphere and chromosphere by using whole-disk Dopplergrams obtained by the Chinese H alpha Solar Explorer (CHASE) for the wavebands Si i (6,560.58 & Aring;), H alpha (6,562.81 & Aring;) and Fe i (6,569.21 & Aring;) with a spectral resolution of 0.024 & Aring;. We find that the Sun rotates progressively faster from the photosphere to the chromosphere. For example, at the equator, it increases from 2.81 +/- 0.02 mu rad s-1 at the bottom of the photosphere to 3.08 +/- 0.05 mu rad s-1 in the chromosphere. The ubiquitous small-scale magnetic fields and the height-dependent degree of their frozen-in effect with the solar atmosphere are plausible causes of the height-dependent rotation rate. The results have important implications for understanding solar subsurface processes and solar atmospheric dynamics. Spectroscopic observations of the CHASE mission reveal the differential rotation of the solar atmosphere, finding quantitively that the Sun rotates progressively faster from the bottom of the photosphere to the chromosphere. |
| 资助项目 | National Science Foundation of China | National Natural Science Foundation of China-Yunnan Joint Fund (NSFC-Yunnan Joint Fund)[050101]; China National Space Administration[12333009]; National Natural Science Foundation of China (NSFC)[12173019]; NSFC; Programme for Innovative Talents and Entrepreneurs of Jiangsu Province[2022YFF0503004]; National Key R&D Program of China[202201AS070042]; Basic Research Foundation of Yunnan Province |
| 项目资助者 | National Science Foundation of China | National Natural Science Foundation of China-Yunnan Joint Fund (NSFC-Yunnan Joint Fund)[050101] ; China National Space Administration[12333009] ; National Natural Science Foundation of China (NSFC)[12173019] ; NSFC ; Programme for Innovative Talents and Entrepreneurs of Jiangsu Province[2022YFF0503004] ; National Key R&D Program of China[202201AS070042] ; Basic Research Foundation of Yunnan Province |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 太阳与太阳系 |
| 文章类型 | Article; Early Access |
| 出版者 | NATURE PORTFOLIO |
| 出版地 | HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY |
| ISSN | 2397-3366 |
| URL | 查看原文 |
| WOS记录号 | WOS:001247083500002 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | MOUNT-WILSON ; INTERNAL-ROTATION ; VELOCITY ; ORIGIN |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27398 |
| 专题 | 抚仙湖太阳观测和研究基地 |
| 作者单位 | 1.School of Astronomy and Space Science, Nanjing University, Nanjing, China; 2.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, China; 3.Institute of Science and Technology for Deep Space Exploration, Suzhou Campus, Nanjing University, Suzhou, China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming, China; 5.Shanghai Institute of Satellite Engineering, Shanghai, China |
| 推荐引用方式 GB/T 7714 | Rao, Shihao,Li, Chuan,Ding, Mingde,et al. Height-dependent differential rotation of the solar atmosphere detected by CHASE[J]. NATURE ASTRONOMY,2024. |
| APA | Rao, Shihao.,Li, Chuan.,Ding, Mingde.,Hong, Jie.,Chen, Feng.,...&Yuan, Yuan.(2024).Height-dependent differential rotation of the solar atmosphere detected by CHASE.NATURE ASTRONOMY. |
| MLA | Rao, Shihao,et al."Height-dependent differential rotation of the solar atmosphere detected by CHASE".NATURE ASTRONOMY (2024). |
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| Height-dependent dif（4899KB） | 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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