Association between Tornadoes and Instability of Hosting Prominence

Autor:	Mghebrishvili, Irakli, Zaqarashvili, Teimuraz V., Kukhianidze, Vasil, Kuridze, David, Tsiklauri, David, Shergelashvili, Bidzina M., Poedts, Stefaan
Rok vydání:	2018
Předmět:	Astrophysics - Solar and Stellar Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.3847/1538-4357/aac823
Popis:	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. Comment: 16 pages, 5 figures, Accepted in ApJ
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1807.01345 Zobrazit plný text záznamu View this record from Arxiv