Association between Tornadoes and Instability of Hosting Prominences

Authors Organisations
  • Irakli Mghebrishvili(Author)
    Ilia State University
  • Teimuraz B. Zaqarashvili(Author)
    Austrian Academy of Sciences
    Ilia State University
    University of Graz
  • Vasil Kukhianidze(Author)
    Ilia State University
  • David Kuridze(Author)
  • David Tsiklauri(Author)
    Queen Mary University of London
  • Bidzina M. Shergelashvili(Author)
    Austrian Academy of Sciences
    Ilia State University
    KU Leuven campus Kortrijk
  • Stefaan Poedts(Author)
    Katholieke Universiteit Leuven
Type Article
Original languageEnglish
Article number112
JournalAstrophysical Journal
Volume861
Issue number2
DOI
Publication statusPublished - 11 Jul 2018
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Abstract

We studied the dynamics of all prominence tornadoes detected by the Solar Dynamics Observatory/Atmospheric Imaging Assembly from 2011 January 01 to December 31. In total, 361 events were identified during the whole year, but only 166 tornadoes were traced until the end of their lifetime. Out of 166 tornadoes, 80 (48%) triggered CMEs in hosting prominences, 83 (50%) caused failed coronal mass ejections (CMEs) or strong internal motion in the prominences, and only 3 (2%) finished their lifetimes without any observed activity. Therefore, almost all prominence tornadoes lead to the destabilization of their hosting prominences and half of them trigger CMEs. Consequently, prominence tornadoes may be used as precursors for CMEs and hence for space weather predictions

Keywords

  • Sun: atmosphere, Sun: filaments, prominences, Sun: oscillations