Multiple eruptions from magnetic flux emergence
Abstract
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.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- December 2009
- DOI:
- 10.1051/0004-6361/200913197
- arXiv:
- arXiv:0910.2616
- Bibcode:
- 2009A&A...508..445M
- Keywords:
-
- Sun: magnetic fields;
- Magnetohydrodynamics (MHD);
- methods: numerical;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- Accepted by A&