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SOLAR MAGNETIZED TORNADOES: ROTATIONAL MOTION IN A TORNADO-LIKE PROMINENCE

文献类型：期刊论文

作者Su, Yang1; Goemoery, Peter2; Veronig, Astrid1; Temmer, Manuela1; Wang, Tongjiang3,4; Vanninathan, Kamalam1; Gan, Weiqun5; Li, YouPing5
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2014-04-10
卷号785期号:1页码:0
关键词Sun: corona Sun: filaments, prominences Sun: UV radiation
ISSN号2041-8205
英文摘要Su et al. proposed a new explanation for filament formation and eruption, where filament barbs are rotating magnetic structures driven by underlying vortices on the surface. Such structures have been noticed as tornado-like prominences when they appear above the limb. They may play a key role as the source of plasma and twist in filaments. However, no observations have successfully distinguished rotational motion of the magnetic structures in tornado-like prominences from other motions such as oscillation and counter-streaming plasma flows. Here we report evidence of rotational motions in a tornado-like prominence. The spectroscopic observations in two coronal lines were obtained from a specifically designed Hinode/EIS observing program. The data revealed the existence of both cold and million-degree-hot plasma in the prominence leg, supporting the so-called prominence-corona transition region. The opposite velocities at the two sides of the prominence and their persistent time evolution, together with the periodic motions evident in SDO/AIA dark structures, indicate a rotational motion of both cold and hot plasma with a speed of similar to 5 km s(-1).
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]NEUTRAL HYDROGEN ; VORTEX FLOWS ; FILAMENTS ; SPECTROMETER ; ABSORPTION ; HELICITY ; FEATURES ; THREADS ; HINODE ; FIELDS
收录类别SCI
原文出处10.1088/2041-8205/785/1/L2
语种英语
WOS记录号WOS:000334345000002
公开日期2014-11-20
源URL[http://libir.pmo.ac.cn/handle/332002/10630]  
专题紫金山天文台_太阳高能及相关物理过程研究团组
作者单位1.Graz Univ, Inst Phys, IGAM Kanzelhohe Observ, A-8010 Graz, Austria
2.Slovak Acad Sci, Astron Inst, SK-05960 Tatranska Lomnica, Slovakia
3.Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA
4.NASA, Goddard Space Flight Ctr, Heliophys Sci Div, Solar Phys Lab, Greenbelt, MD 20771 USA
5.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Su, Yang,Goemoery, Peter,Veronig, Astrid,et al. SOLAR MAGNETIZED TORNADOES: ROTATIONAL MOTION IN A TORNADO-LIKE PROMINENCE[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,785(1):0.
APA Su, Yang.,Goemoery, Peter.,Veronig, Astrid.,Temmer, Manuela.,Wang, Tongjiang.,...&Li, YouPing.(2014).SOLAR MAGNETIZED TORNADOES: ROTATIONAL MOTION IN A TORNADO-LIKE PROMINENCE.ASTROPHYSICAL JOURNAL LETTERS,785(1),0.
MLA Su, Yang,et al."SOLAR MAGNETIZED TORNADOES: ROTATIONAL MOTION IN A TORNADO-LIKE PROMINENCE".ASTROPHYSICAL JOURNAL LETTERS 785.1(2014):0.

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来源：紫金山天文台

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