YNAO OpenIR  > 抚仙湖太阳观测和研究基地
Naked emergence of an anti-Hale active region I. Overall evolution and magnetic properties
Wang JC(王金成)1,2,3; Yan XL(闫晓理)1,3; Kong DF(孔德芳)1,3; Xue ZK(薛志科)1,3; Yang LH(杨丽恒)1,3; Li QL(李巧玲)1,4; Zhang Y(张岩)1,4; Li, Hao5,6
发表期刊ASTRONOMY & ASTROPHYSICS
2021-08-11
卷号652
DOI10.1051/0004-6361/202140685
产权排序第1完成单位
收录类别SCI ; EI
关键词sunspots Sun: evolution Sun: magnetic fields
摘要

Aims. In order to understand the emergence of the active region, we investigate the emerging process and magnetic properties of a naked anti-Hale active region during the period between August 24 to 25, 2018. Methods. Using the data from Helioseismic and Magnetic Imager on board the Soar Dynamic Observatory and the New Vacuum Solar Telescope, we calculated different evolving parameters (such as pole separation, tilt angle) and magnetic parameters (such as vertical electric current, force-free parameter, relative magnetic helicity) during the emergence of the active region. With these calculated parameters and some reasonable assumptions, we use two different methods to estimate the twist of the active region. Results. The magnetic flux and pole separation continue increasing while the tilt angle exhibits a decreasing pattern during the emergence of the active region. The increase of the pole separation is mainly contributed as a result of the enhancement in the longitude direction. A power-law relationship between pole separation and total flux is found during the emergence of the active region. On the other hand, it is found that both the positive and negative electric currents increased equivalently and the average flux-weighted force-free parameter (alpha) over tilde remains almost consistently positive, on the order of similar to 10(-8) m(-1). The relative magnetic helicity is mainly contributed by the shear term, while the relative magnetic helicity injection flux of the shear term changes its sign at the latter stage of the emergence. The twist number of the whole active region remains on the order of 10(-1) turns during the emergence of the active region. Conclusions. We find that the magnetic flux tube with low twist also could emerge into the solar atmosphere.

资助项目National Key R&D Program of China[2019YFA0405000] ; National Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[12003064] ; National Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11873087] ; National Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11803085] ; Yunnan Science Foundation of China[2019FD085] ; CAS Light of West China Program[Y9XB018001] ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences[KLSA202014] ; Yunnan Talent Science Foundation of China[2018FA001] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Key Research and Development Project of Yunnan Province[202003AD150019]
项目资助者National Key R&D Program of China[2019YFA0405000] ; National Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[12003064, 11873087, 11803085] ; Yunnan Science Foundation of China[2019FD085] ; CAS Light of West China Program[Y9XB018001] ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences[KLSA202014] ; Yunnan Talent Science Foundation of China[2018FA001] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Key Research and Development Project of Yunnan Province[202003AD150019]
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EDP SCIENCES S A
出版地17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN0004-6361
URL查看原文
WOS记录号WOS:000683963000003
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ELECTRIC-CURRENT NEUTRALIZATION ; FLUX-TUBE EMERGENCE ; CURRENT PATTERNS ; HELICITY ; FIELD ; ENERGY ; TWIST ; INJECTION ; TRANSPORT ; TILT
EI入藏号20213410792831
EI主题词Separation
EI分类号701.2 Magnetism: Basic Concepts and Phenomena - 802.3 Chemical Operations
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/24525
专题抚仙湖太阳观测和研究基地
通讯作者Wang JC(王金成)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming Yunnan 650216, PR China;
2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, PR China;
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, PR China;
4.University of Chinese Academy of Sciences, Yuquan Road, Shijingshan Block, Beijing 100049, PR China;
5.Instituto de Astrofisica de Canarias, 38205 La Laguna, Tenerife, Spain;
6.Universidad de La Laguna, Dpto. Astrofisica, 38206 La Laguna, Tenerife, Spain
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
推荐引用方式
GB/T 7714
Wang JC,Yan XL,Kong DF,et al. Naked emergence of an anti-Hale active region I. Overall evolution and magnetic properties[J]. ASTRONOMY & ASTROPHYSICS,2021,652.
APA Wang JC.,Yan XL.,Kong DF.,Xue ZK.,Yang LH.,...&Li, Hao.(2021).Naked emergence of an anti-Hale active region I. Overall evolution and magnetic properties.ASTRONOMY & ASTROPHYSICS,652.
MLA Wang JC,et al."Naked emergence of an anti-Hale active region I. Overall evolution and magnetic properties".ASTRONOMY & ASTROPHYSICS 652(2021).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Naked emergence of a(1445KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang JC(王金成)]的文章
[Yan XL(闫晓理)]的文章
[Kong DF(孔德芳)]的文章
百度学术
百度学术中相似的文章
[Wang JC(王金成)]的文章
[Yan XL(闫晓理)]的文章
[Kong DF(孔德芳)]的文章
必应学术
必应学术中相似的文章
[Wang JC(王金成)]的文章
[Yan XL(闫晓理)]的文章
[Kong DF(孔德芳)]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Naked emergence of an anti-Hale active region I. Overall evolution and magnetic properties.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。