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SOLAR MAGNETIZED TORNADOES: ROTATIONAL MOTION IN A TORNADO-LIKE PROMINENCE
Su, Yang1; Goemoery, Peter2; Veronig, Astrid1; Temmer, Manuela1; Wang, Tongjiang3,4; Vanninathan, Kamalam1; Gan, Weiqun5; Li, YouPing5
2014-04-10
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume785Issue:1Pages:0
AbstractSu 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).
KeywordSun: Corona Sun: Filaments, Prominences Sun: Uv Radiation
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/2041-8205/785/1/L2
WOS KeywordNEUTRAL HYDROGEN ; VORTEX FLOWS ; FILAMENTS ; SPECTROMETER ; ABSORPTION ; HELICITY ; FEATURES ; THREADS ; HINODE ; FIELDS
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000334345000002
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10630
Collection太阳高能及相关物理过程研究团组
Affiliation1.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
Recommended Citation
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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