The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun | |
Chen HC(陈何超)1,2,3![]() ![]() ![]() ![]() ![]() | |
刊名 | SOLAR PHYSICS
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2018-06-01 | |
卷号 | 293期号:6页码:17 |
关键词 | Prominences, Formation And Evolution Magnetic Fields, Photosphere Velocity Fields, Photosphere Helicity, Magnetic |
ISSN号 | 0038-0938 |
DOI | 10.1007/s11207-018-1311-8 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | We present observations of the formation process of a small-scale filament on the quiet Sun during 5 - 6 February 2016 and investigate its formation cause. Initially, a small dipole emerged, and its associated arch filament system was found to reconnect with overlying coronal fields accompanied by numerous extreme ultraviolet bright points. When the bright points faded, many elongated dark threads formed and bridged the positive magnetic element of the dipole and the external negative network fields. Interestingly, an anticlockwise photospheric rotational motion (PRM) set in within the positive endpoint region of the newborn dark threads following the flux emergence and lasted for more than 10 hours. Under the drive of the PRM, these dispersive dark threads gradually aligned along the north-south direction and finally coalesced into an inverse S-shaped filament. Consistent with the dextral chirality of the filament, magnetic helicity calculations show that an amount of negative helicity was persistently injected from the rotational positive magnetic element and accumulated during the formation of the filament. These observations suggest that twisted emerging fields may lead to the formation of the filament via reconnection with pre-existing fields and release of its inner magnetic twist. The persistent PRM might trace a covert twist relaxation from below the photosphere to the low corona. |
学科主题 | 天文学 |
URL标识 | 查看原文 |
出版地 | VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS |
资助项目 | Natural Science Foundation of China[11703084] ; Natural Science Foundation of China[11633008] ; Natural Science Foundation of China[11333007] ; Natural Science Foundation of China[11573012] ; Natural Science Foundation of China[11503081] ; CAS program "Light of West China" ; CAS program[QYZDJ-SSW-SLH012] ; Project of the Group for Innovation of Yunnan Province |
WOS关键词 | Magnetic Induction Equation ; Prominence Formation ; Solar Prominences ; Helicity ; Sunspot ; Rope ; Eruption ; Fields ; Flare ; Tube |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000435901200002 |
资助机构 | Natural Science Foundation of China[11703084, 11633008, 11333007, 11573012, 11503081] ; CAS program "Light of West China" ; CAS program[QYZDJ-SSW-SLH012] ; Project of the Group for Innovation of Yunnan Province |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/12408] ![]() |
专题 | 云南天文台_抚仙湖太阳观测站 |
通讯作者 | Chen HC(陈何超) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, China 2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China 3.University of Chinese Academy of Sciences, 19A Yuquan Road, Shijingshan District, Beijing, 100049, China |
推荐引用方式 GB/T 7714 | Chen HC,Yang JY,Yang B,et al. The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun[J]. SOLAR PHYSICS,2018,293(6):17. |
APA | Chen HC,Yang JY,Yang B,Ji KF,&Bi Y.(2018).The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun.SOLAR PHYSICS,293(6),17. |
MLA | Chen HC,et al."The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun".SOLAR PHYSICS 293.6(2018):17. |
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