Investigation of the coronal heating through phase relation of solar activity indexes
文献类型:期刊论文
作者 | Li KJ(李可军)1,2,3; Xu JC(徐景晨)1,2,3; Yin, Z. Q.2,3; Xie JL(谢婧岚)1,2,3; Feng, W.4 |
刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA |
出版日期 | 2020 |
卷号 | 37页码:8 |
ISSN号 | 1323-3580 |
关键词 | Sun activity Sun atmosphere Sun corona |
DOI | 10.1017/pasa.2019.43 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | The coronal heating problem is a long-standing perplexing issue. In this study, 13 solar activity indexes are used to investigate their phase relation with the sunspot number (SSN). Only three of them are found to statistically significantly lag the SSN (large-scale magnetic activity) by about one solar rotation period; the three indexes are total solar irradiance (TSI), the modified coronal index, and the solar wind velocity; the former two indexes may represent the long-term variation of energy quantity of the heated photosphere and corona, respectively. The Mount Wilson Sunspot Index (MWSI) and the Magnetic Plage Strength Index (MPSI), which reflect the large- and small-scale magnetic field activities, respectively, are also utilised to investigate their phase relations with the three indexes. The three indexes are found to be much more intimately related to MPSI than to MWSI, and MWSI statistically significantly leads TSI by about one rotation period. The heated corona is found to pulse perfectly in step with the small-scale magnetic activity rather than the large-scale magnetic activity; furthermore, combined with observations, our statistical evidence should thus attribute coronal heating firmly to small-scale magnetic activity phenomena, such as spicules, micro-flares, nano-flares, and others. The photosphere and the corona are synchronously heated, which should seemingly prefer magnetic reconnection heating to wave heating. In the long term, such a coronal heating way is inferred effective. Statistically, it is also small-scale magnetic activity phenomena that produce TSI enhancement. Coronal heating and solar wind acceleration are found to be synchronous, as standard models require. |
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 | 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA |
WOS关键词 | WIND ; CYCLE ; VARIABILITY ; DEPENDENCE |
资助项目 | NASA ; ONR ; NSF ; 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] ; National Natural Science Foundation of China[11573065] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201912] ; Chinese Academy of Sciences ; Yunling-scholar Project ; national project for large-scale scientific facilities |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | CAMBRIDGE UNIV PRESS |
WOS记录号 | WOS:000508965600001 |
资助机构 | NASA ; ONR ; NSF ; National Natural Science Foundation of China[11973085, 11903077, 11803086, 11703085, 11633008, 11573065] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201912] ; Chinese Academy of Sciences ; Yunling-scholar Project ; national project for large-scale scientific facilities |
源URL | [http://ir.ynao.ac.cn/handle/114a53/22203] |
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.Yunnan Observatories, CAS, Kunming 650011, China 2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China 3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China 4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China |
推荐引用方式 GB/T 7714 | Li KJ,Xu JC,Yin, Z. Q.,et al. Investigation of the coronal heating through phase relation of solar activity indexes[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,2020,37:8. |
APA | Li KJ,Xu JC,Yin, Z. Q.,Xie JL,&Feng, W..(2020).Investigation of the coronal heating through phase relation of solar activity indexes.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,37,8. |
MLA | Li KJ,et al."Investigation of the coronal heating through phase relation of solar activity indexes".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA 37(2020):8. |
入库方式: OAI收割
来源:云南天文台
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