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The Decay of alpha-configuration Sunspots
Li, Qiaoling1,2; Zhang, Li2; Yan, Xiaoli3,4; Wang, Jincheng3,4,5; Kong, Defang3,4; Yang, Liheng3,4; Xue, Zhike3,4
2021-06-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume913Issue:2Pages:11
AbstractTo better understand the decay of different types of sunspots, we studied the decay of eight alpha-configuration sunspots by using the data that were acquired by the Helioseismic and Magnetic Imager on board the Solar Dynamic Observatory. We followed their decay for about four days and analyzed the evolution of their photospheric area and magnetic field parameters. We found that the area and total magnetic flux of alpha sunspots show a near-linear decrease during their decay. Meanwhile, the area decay rate of an individual sunspot is not constant. The area decay of a sunspot can be divided into two stages, a slow and a rapid decay process. Moreover, according to the difference of the area decay of the penumbra and umbra, the alpha sunspots decay can be classified in three ways: the penumbra and umbra decay synchronously, the penumbra decays first, and the umbra decays first. In addition, the flux decay of the penumbra is lagging behind the decay of the penumbral area. This finding suggests that the vertical magnetic field of the sunspot penumbra increases significantly in the early stage of sunspot decay.
Funding OrganizationNational Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars ; National Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars ; National Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars ; National Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars
DOI10.3847/1538-4357/abfa1b
WOS KeywordMOVING MAGNETIC FEATURES ; HORIZONTAL FLOW-FIELDS ; ACTIVE-REGION ; CURIOUS HISTORY ; FLUX EMERGENCE ; PENUMBRA ; EVOLUTION ; CANOPY ; SENSE ; RATES
Language英语
Funding ProjectNational Key R&D program of China[2018YFA0404204] ; National Science Foundation of China (NSFC)[11873087] ; National Science Foundation of China (NSFC)[11633008] ; National Science Foundation of China (NSFC)[11803085] ; Yunnan Key Science Foundation of China[2018FA001] ; Yunnan Science Foundation for Distinguished Young Scholars
Funding OrganizationNational Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars ; National Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars ; National Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars ; National Key R&D program of China ; National Key R&D program of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Yunnan Key Science Foundation of China ; Yunnan Key Science Foundation of China ; Yunnan Science Foundation for Distinguished Young Scholars ; Yunnan Science Foundation for Distinguished Young Scholars
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000658485900001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76993
Collection中国科学院国家天文台
Corresponding AuthorLi, Qiaoling
Affiliation1.Yunnan Univ, Dept Phys, Kunming 650091, Yunnan, Peoples R China
2.Yunnan Univ, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Yunnan, Peoples R China
3.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
4.Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China
5.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714		 Li, Qiaoling,Zhang, Li,Yan, Xiaoli,et al. The Decay of alpha-configuration Sunspots[J]. ASTROPHYSICAL JOURNAL,2021,913(2):11.
APA Li, Qiaoling.,Zhang, Li.,Yan, Xiaoli.,Wang, Jincheng.,Kong, Defang.,...&Xue, Zhike.(2021).The Decay of alpha-configuration Sunspots.ASTROPHYSICAL JOURNAL,913(2),11.
MLA Li, Qiaoling,et al."The Decay of alpha-configuration Sunspots".ASTROPHYSICAL JOURNAL 913.2(2021):11.
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