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Dependence of the Continuum Intensities on the Magnetic Fields at Different Evolution Phases of Sunspots
Li, Qiaoling1,2; Zhang, Li2; Yan XL(闫晓理)3,4; Norton, Aimee A.5; Wang JC(王金成)3,4; Yang LH(杨丽恒)3,4; Xue ZK(薛志科)3,4; Kong DF(孔德芳)3,4
发表期刊ASTROPHYSICAL JOURNAL
2022-09-01
卷号936期号:1
DOI10.3847/1538-4357/ac83b3
产权排序第3完成单位
收录类别SCI
摘要

The relationship between the continuum intensities and magnetic fields for stable and decaying sunspots is analyzed using the scattered-light-corrected data from the Helioseismic and Magnetic Imager. From our analysis, the main differences between stable and decaying sunspots are as follows. In the continuum intensity range from 0.35I (qs) to 0.65I (qs), where I (qs) is the continuum intensity of the quiet solar surface, the relationship between continuum intensity and transverse magnetic field and the relationship between continuum intensity and inclination display a much higher scatter during the decaying phase of the sunspots. During and after the formation of the light bridge, the scatter plots show a bifurcation that indicates that the two umbrae separated by the light bridge have different thermodynamic properties. The continuum intensity of the umbra in a decaying sunspot is brighter than that of the stable sunspot, indicating that the temperatures in the umbra of decaying sunspots are higher. Furthermore, our results show that the mean continuum intensity of the umbra gradually increases during the decay of the sunspot, but the mean continuum intensity of the penumbra remains constant. Simultaneously, the vertical and transverse magnetic field strengths in the umbra gradually decrease, and the vertical magnetic field strengths in the penumbra gradually increase. The changes in the umbra occur earlier than the changes in the penumbra of the decaying sunspot, suggesting that the umbral and penumbral decay may be an interdependent process during the decay of the sunspot.

资助项目National Key R&D program of China[2018YFA0404204] ; National Science Foundation of China (NSFC)[11873087] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]
项目资助者National Key R&D program of China[2018YFA0404204] ; National Science Foundation of China (NSFC)[11873087] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]
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IOP Publishing Ltd
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000847188100001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]EVERSHED FLOW ; DECAY ; TEMPERATURE ; SPECTROSCOPY ; SIMULATIONS
引用统计
被引频次:2[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/114a53/25550
专题抚仙湖太阳观测和研究基地
通讯作者Li, Qiaoling
作者单位1.Department of Physics, Yunnan University, Kunming 650091, People's Republic of China; liqiaoling@ynu.edu.cn;
2.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China; lizhang@ynu.edu.cn;
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
4.Yunnan Key Laboratory of Solar Physics and Space Science, 650216, People's Republic of China;
5.HEPL Solar Physics, Stanford University, Stanford, CA 94305, USA
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GB/T 7714
Li, Qiaoling,Zhang, Li,Yan XL,et al. Dependence of the Continuum Intensities on the Magnetic Fields at Different Evolution Phases of Sunspots[J]. ASTROPHYSICAL JOURNAL,2022,936(1).
APA Li, Qiaoling.,Zhang, Li.,Yan XL.,Norton, Aimee A..,Wang JC.,...&Kong DF.(2022).Dependence of the Continuum Intensities on the Magnetic Fields at Different Evolution Phases of Sunspots.ASTROPHYSICAL JOURNAL,936(1).
MLA Li, Qiaoling,et al."Dependence of the Continuum Intensities on the Magnetic Fields at Different Evolution Phases of Sunspots".ASTROPHYSICAL JOURNAL 936.1(2022).
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