Differential Rotation of the Chromosphere in the He I Absorption Line

doi:10.3847/2041-8213/abcb84

	Differential Rotation of the Chromosphere in the He I Absorption Line
	Li KJ(李可军)2,3,4; Xu JC(徐景晨)2; Xie JL(谢婧岚)2,4; Feng, W.1
刊名	The Astrophysical Journal Letters
	2020-12-01
卷号	905 期号:1 页码:8
关键词	Solar rotation Solar chromosphere Solar activity
ISSN号	2041-8205
DOI	10.3847/2041-8213/abcb84
产权排序	第1完成单位
文献子类	Article
英文摘要	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.
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	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
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]
WOS关键词	SUNS MAGNETIC-FIELD ; SOLAR
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000598109000001
资助机构	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]
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/24012]
专题	云南天文台_抚仙湖太阳观测站
通讯作者	Feng, W.
作者单位	1.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, People's Republic of China 2.Yunnan Observatories, CAS, Kunming 650011, People's Republic of China 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China 4.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, People's Republic of China
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.