Volume 508, Number 1, December II 2009
|Page(s)||445 - 449|
|Published online||21 October 2009|
Multiple eruptions from magnetic flux emergence
School of Mathematics and Statistics, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, Scotland, UK e-mail: email@example.com
Accepted: 14 October 2009
Aims. In this paper we study the effects of a toroidal magnetic flux tube emerging into a magnetized corona, with an emphasis on large-scale eruptions. The orientation of the fields is such that the two flux systems are almost antiparallel when they meet.
Methods. We follow the dynamic evolution of the system by solving the 3D MHD equations using a Lagrangian remap scheme.
Results. Multiple eruptions are found to occur. The physics of the trigger mechanisms is discussed and related to well-known eruption models.
Key words: Sun: magnetic fields / Magnetohydrodynamics (MHD) / methods: numerical
© ESO, 2009
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