The Decay of Two Adjacent Sunspots Associated with Moving Magnetic Features

doi:10.3847/1538-4357/ad063e

	The Decay of Two Adjacent Sunspots Associated with Moving Magnetic Features
	Peng Y(彭洋)1,2; Xue ZK(薛志科)1,3; Qu ZQ(屈中权)1,2; Wang JC(王金成)1,3; Xu Z(徐喆)1,3; Yang LH(杨丽恒)1,3; Zhou YA(周羿安)1
刊名	ASTROPHYSICAL JOURNAL
	2024
卷号	960 期号:2
ISSN号	0004-637X
DOI	10.3847/1538-4357/ad063e
产权排序	第1完成单位
文献子类	Article
英文摘要	The relationship between the decay of sunspots and moving magnetic features (MMFs) plays an important role in understanding the evolution of active regions. We present observations of two adjacent sunspots, the gap between them, and a lot of MMFs propagating from the gap and the sunspots' outer edges in NOAA Active Region 13023. The MMFs are divided into two types based on their magnetic field inclination angle: vertical (0 degrees < gamma < 45 degrees) and horizontal (45 degrees <= gamma < 90 degrees) MMFs (V-MMFs and H-MMFs, respectively). The main results are as follows: (1) the mean magnetic flux decay rates of the two sunspots are -1.7 x 10(20) and -1.4 x 10(20) Mx day(-1); (2) the magnetic flux generation rate of all MMFs is calculated to be -1.9 x 10(21) Mx day(-1), which is on average 5.6 times higher than the total magnetic flux loss rate of the sunspots; (3) the magnetic flux of V-MMFs (including a pore separated from the sunspots) is 1.4 times larger than the total lost magnetic flux of the two sunspots, and in a later stage when the pore has passed through the reference ellipse, the magnetic flux generation rate of the V-MMFs is almost the same as the magnetic flux loss rate of the sunspots; and (4) within the gap, the magnetic flux of V-MMFs is one-third of the total magnetic flux. Few V-MMFs stream out from the sunspots at the nongap region. All observations suggest that MMFs with vertical magnetic fields are closely related to the disintegration of the sunspot, and most of the MMFs from the gap may originate directly from the sunspot umbra.
学科主题	天文学
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[12003066]; National Natural Science Foundation of China[11527804]; National Natural Science Foundation of China[U1831210]; National Natural Science Foundation of China[12203097]; National Natural Science Foundation of China[12325303]; National Natural Science Foundation of China[12003064]; National Natural Science Foundation of China[202205AG070009]; National Natural Science Foundation of China[202101AT070032]; Yunnan Key Laboratory of Solar Physics and Space Science[202201AT070194]; Yunnan Science Foundation of China[202301AT070347]; Yunnan Science Foundation of China[XDB0560000]; Yunnan Science Foundation of China[2019061]; Youth Innovation Promotion Association; Chinese Academy of Sciences (CAS); CAS Light of West China Program; Yunnan Science Foundation for Distinguished Young Scholars; Key Research and Development Project of Yunnan Province; Strategic Priority Research Program of the Chinese Academy of Sciences; Yunnan Fundamental Research Projects; Young Elite Scientists Sponsorship Program by YNAST.9; Project of the Group for Innovation of Yunnan Province;
WOS关键词	FLUX ; FIELDS ; EVOLUTION ; FLOW ; TRACKING ; RATES
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001135168000001
资助机构	National Natural Science Foundation of China[12003066, 11527804, U1831210, 12203097, 12325303, 12003064, 202205AG070009, 202101AT070032] ; Yunnan Key Laboratory of Solar Physics and Space Science[202201AT070194] ; Yunnan Science Foundation of China[202301AT070347, XDB0560000, 2019061] ; Youth Innovation Promotion Association ; Chinese Academy of Sciences (CAS) ; CAS Light of West China Program ; Yunnan Science Foundation for Distinguished Young Scholars ; Key Research and Development Project of Yunnan Province ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Yunnan Fundamental Research Projects ; Young Elite Scientists Sponsorship Program by YNAST.9 ; Project of the Group for Innovation of Yunnan Province ; [11973084] ; [11973088] ; [202001AV070004] ; [202003AD150019] ; [202301AT070349]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26456]
专题	云南天文台_抚仙湖太阳观测站
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; zkxue@ynao.ac.cn; 2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 3.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People's Republic of China
推荐引用方式 GB/T 7714	Peng Y,Xue ZK,Qu ZQ,et al. The Decay of Two Adjacent Sunspots Associated with Moving Magnetic Features[J]. ASTROPHYSICAL JOURNAL,2024,960(2).
APA	彭洋.,薛志科.,屈中权.,王金成.,徐喆.,...&周羿安.(2024).The Decay of Two Adjacent Sunspots Associated with Moving Magnetic Features.ASTROPHYSICAL JOURNAL,960(2).
MLA	彭洋,et al."The Decay of Two Adjacent Sunspots Associated with Moving Magnetic Features".ASTROPHYSICAL JOURNAL 960.2(2024).