English

Association between Tornadoes and Instability of Hosting Prominence

Solar and Stellar Astrophysics 2018-07-17 v2

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

Cite

@article{arxiv.1807.01345,
  title  = {Association between Tornadoes and Instability of Hosting Prominence},
  author = {Irakli Mghebrishvili and Teimuraz V. Zaqarashvili and Vasil Kukhianidze and David Kuridze and David Tsiklauri and Bidzina M. Shergelashvili and Stefaan Poedts},
  journal= {arXiv preprint arXiv:1807.01345},
  year   = {2018}
}

Comments

16 pages, 5 figures, Accepted in ApJ