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Phase relation of the quiet chromosphere in the He I line with the solar cycle
Li KJ(李可军)1,3,4; Feng, W.2
发表期刊ADVANCES IN SPACE RESEARCH
2022-03-01
卷号69期号:5页码:2319-2329
DOI10.1016/j.asr.2021.11.045
产权排序第1完成单位
收录类别SCI
关键词Sun: activity Sun: chromosphere Sun: atmosphere
摘要

The heating of the chromosphere is a long-lived puzzle in modern astronomy. Solar synoptic maps of He I 10830 angstrom intensity, which are observed at National Solar Observatory/Kitt Peak from Jul. 2005 to Mar. 2013 are utilized to investigate the phase relation of long-term evolution of the quiet chromosphere represented by He I intensity with the solar cycle represented by sunspot number. The phase relationship of the He I chromosphere at low and middle latitudes with the solar cycle is found to show an interesting phenomenon, black under the light: (1) at most of the latitudes of the conspicuous active chromosphere (the butterfly diagram), the relationship is anti-phase, but at the latitudes outside the butterfly diagram (the inconspicuous background chromosphere), it is in-phase; and (2) the He I intensity averaged over the low latitudes of 0-30 degrees is in anti-phase with the solar cycle, but after deducing some relatively small values of He I intensity, the anti-phase relationship is reversed to be in-phase. Long-term variation of He I intensity at the full disk of the quiet chromosphere is believed to be in phase with the solar cycle, and accordingly, the temporal evolution of the heated quiet chromosphere is in phase with long-term variation of the small-scale magnetic elements whose flux is (2.9 - 32.0)x10(18) Mx, and it provides evidence for the heating of the quiet chromosphere mainly by the magnetic elements. Implication of the findings is discussed, and especially, the long-term variation of total solar irradiance measured at low latitudes is inferred to be significantly different from that at high latitudes.

资助项目N/A
项目资助者N/A
语种英语
学科领域天文学 ; 太阳与太阳系 ; 太阳物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者ELSEVIER SCI LTD
出版地THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
ISSN0273-1177
URL查看原文
WOS记录号WOS:000771715400009
WOS研究方向Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
关键词[WOS]10830 ANGSTROM ; BRIGHT POINTS ; REGIONS ; CORONA ; SUN
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/25077
专题抚仙湖太阳观测和研究基地
通讯作者Li KJ(李可军)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
4.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
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Li KJ,Feng, W.. Phase relation of the quiet chromosphere in the He I line with the solar cycle[J]. ADVANCES IN SPACE RESEARCH,2022,69(5):2319-2329.
APA Li KJ,&Feng, W..(2022).Phase relation of the quiet chromosphere in the He I line with the solar cycle.ADVANCES IN SPACE RESEARCH,69(5),2319-2329.
MLA Li KJ,et al."Phase relation of the quiet chromosphere in the He I line with the solar cycle".ADVANCES IN SPACE RESEARCH 69.5(2022):2319-2329.
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