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High-resolution Observations of Sympathetic Filament Eruptions by NVST
Li, Shangwei1,2; Su, Yingna1,5; Zhou, Tuanhui1; van Ballegooijen, Adriaan3; Sun, Xudong4; Ji, Haisheng1,5
2017-07-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume844Issue:1Pages:13
Corresponding AuthorSu, Yingna(ynsu@pmo.ac.cn)
AbstractWe investigate two sympathetic filament eruptions observed by the New Vacuum Solar Telescope on 2015 October 15. The full picture of the eruptions is obtained from the corresponding Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) observations. The two filaments start from active region NOAA 12434 in the north and end in one large quiescent filament channel in the south. The left filament erupts first, followed by the right filament eruption about 10 minutes later. Clear twist structure and rotating motion are observed in both filaments during the eruption. Both eruptions failed, since the filaments first rise up, then flow toward the south and merge into the southern large quiescent filament. We also observe repeated activations of mini filaments below the right filament after its eruption. Using magnetic field models constructed based on SDO/ HMI magnetograms via the flux rope insertion method, we find that the left filament eruption is likely to be triggered by kink instability, while the weakening of overlying magnetic fields due to magnetic reconnection at an X-point between the two filament systems might play an important role in the onset of the right filament eruption.
KeywordSun: chromosphere Sun: corona Sun: filaments, prominences Sun: magnetic fields Sun:rotation Sun: UV radiation
DOI10.3847/1538-4357/aa78f5
WOS KeywordCORONAL MASS EJECTIONS ; ACTIVE-REGION 10953 ; POLAR CROWN PROMINENCE ; FLUX ROPE MODEL ; MAGNETIC-FIELD ; SOLAR PROMINENCES ; KINK INSTABILITY ; EMERGING FLUX ; SLOW RISE ; EQUILIBRIUM
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000406185600008
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22824
Collection中国科学院紫金山天文台
Corresponding AuthorSu, Yingna
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210008, Peoples R China
2.Univ CAS, Beijing 100049, Peoples R China
3.5001 Riverwood Ave, Sarasota, FL 34231 USA
4.Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA
5.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Li, Shangwei,Su, Yingna,Zhou, Tuanhui,et al. High-resolution Observations of Sympathetic Filament Eruptions by NVST[J]. ASTROPHYSICAL JOURNAL,2017,844(1):13.
APA Li, Shangwei,Su, Yingna,Zhou, Tuanhui,van Ballegooijen, Adriaan,Sun, Xudong,&Ji, Haisheng.(2017).High-resolution Observations of Sympathetic Filament Eruptions by NVST.ASTROPHYSICAL JOURNAL,844(1),13.
MLA Li, Shangwei,et al."High-resolution Observations of Sympathetic Filament Eruptions by NVST".ASTROPHYSICAL JOURNAL 844.1(2017):13.
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