Streamer Blowout CME Initiation: Not Loss-of-Equilibrium, Not Flux-Cancellation, Not the Kink Instability, and Not the Torus Instability
Abstract
We present results from a three-dimensional numerical magnetohydrodynamics (MHD) simulation of the 2008 June 1-2 slow streamer blowout CME that Robbrecht et al. [2009] called 'the CME from nowhere.'
We investigate the CME initiation mechanism in detail, showing definitely the eruption is *not* caused by loss-of-equilibrium, flux-cancellation, the kink instability or the torus instability, rather, the rising sheared arcade becomes a CME in the traditional sense only when the eruptive flare reconnection occurs at the radial current sheet, forming a flux rope structure *during* the eruption. We present favorable comparisons between our simulation results and the multi-viewpoint SOHO-LASCO and STEREO-SECCHI coronagraph observations of the pre-eruption streamer structure and the initiation and evolution of the stealth streamer blowout CME. We also present synthetic in-situ time series at r=15Rs of the plasma and field signatures of the flux rope CME and show qualitative agreement to the ICME observed by STB on 2008 June 6-7.- Publication:
-
Solar Heliospheric and INterplanetary Environment (SHINE 2016)
- Pub Date:
- July 2016
- Bibcode:
- 2016shin.confE..49L