中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Case studies of EUV cyclones and their associated magnetic fields

文献类型:期刊论文

作者Yu, Xin-Ting1,2; Zhang, Jun1; Li, Ting1; Yang, Shu-Hong1; Zhang Jun; Yang Shuhong; Li Ting
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2015-09-01
卷号15期号:9页码:1525-1536
关键词Sun: activity Sun: corona Sun: magnetic fields Sun: photosphere
英文摘要EUV cyclones are rotating structures in the solar corona, and they are usually rooted in the underlying rotating network magnetic fields in the photosphere. However, their connection with the surrounding magnetic fields remains unknown. Here we report an observational study of four typical cyclones which are rooted in different kinds of magnetic fields. We use Solar Dynamics Observatory/Atmospheric Imaging Assembly data to investigate the rotation of EUV features in cyclones and Helioseismic and Magnetic Imager data to study the associated magnetic fields. The results show that, (1) an EUV cyclone rooted in a sunspot rotates with the photospheric magnetic field; (2) two EUV cyclones in two faculae of an active region are connected to the same sunspot of the active region but rotate oppositely; (3) an EUV cyclone is rooted in a coronal hole with weak open magnetic fields; (4) a pair of conjugated cyclones is rooted in magnetic fields that have opposite polarity with opposite directions of rotation. The differences in the spatial extent of a cyclone, characteristics of its rotation and underlying fields indicate that cyclones are ubiquitous over the solar atmosphere and that the magnetic structures relevant to the cyclones are more complicated than expected.
收录类别SCI
语种英语
WOS记录号WOS:000360555100009
源URL[http://ir.bao.ac.cn/handle/114a11/5601]  
专题国家天文台_太阳物理研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China
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GB/T 7714
Yu, Xin-Ting,Zhang, Jun,Li, Ting,et al. Case studies of EUV cyclones and their associated magnetic fields[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(9):1525-1536.
APA Yu, Xin-Ting.,Zhang, Jun.,Li, Ting.,Yang, Shu-Hong.,Zhang Jun.,...&Li Ting.(2015).Case studies of EUV cyclones and their associated magnetic fields.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(9),1525-1536.
MLA Yu, Xin-Ting,et al."Case studies of EUV cyclones and their associated magnetic fields".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.9(2015):1525-1536.

入库方式: OAI收割

来源:国家天文台

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