On flux rope stability and atmospheric stratification in models of coronal mass ejections triggered by flux emergence

2014/03/31 by E. Lee, V. S. Lukin, M. G. Linton
Physics and Astronomy · #Boundary value problem #Coronal mass ejection #Dust and Plasma Wave Phenomena #Flux (metallurgy) #Ionosphere and magnetosphere dynamics #Magnetic flux #Magnetohydrodynamics #Photosphere #Rope #Solar and Space Plasma Dynamics #Stratification (seeds) #astro-ph.SR #physics.plasm-ph #physics.space-ph

paper · pdf · doi:10.1051/0004-6361/201423739

published as A&A 569, A94 (2014) · Submitted Feb 28, 2014 to, accepted Aug 14, 2014 by Astronomy & Astrophysics. 13 pages, 10 figures, 2 tables

arxiv created 2014/08/14 · openalex publication_date 2014/08/21 · arxiv updated 2014/10/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. Flux emergence is widely recognized as playing an important role in the initiation of coronal mass ejections. The Chen & Shibata model (Chen & Shibata 2000, ApJ, 545, 524), which addresses the connection between emerging flux and flux rope eruptions, can be implemented numerically to study how emerging flux through the photosphere can affect the eruption of a pre-existing coronal flux rope.

Citations

• Instability of current sheets and formation of plasmoid chains
• MHD wave propagation in the neighbourhood of a two-dimensional null point
• The first observed stellar X-ray flare oscillation: Constraints on the flare loop length and the magnetic field