Magnetohydrodynamic Simulations of Interplanetary Coronal Mass Ejections
Abstract
Accurately following the propagation of Interplanetary Coronal Mass Ejections (ICME) is very important for determining space weather conditions. These are known to impact the functioning of satellites or create a dangerous environment for astronauts in orbit around the Earth. Here we describe how we simulate with our MHD numerical model in spherical coordinates the propagation of ICMEs from the critical point to Earth and beyond. We first obtain the boundary conditions to apply at the lower boundaries using the results of simulations of coronal mass ejections. These are normally derived from the coronal version of our own model, but any other model that can provide the components of the magnetic field and the velocity, density, and pressure of the plasma can be used. Then we calculate the propagation of the disturbance in interplanetary space.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFMSH41B2117L
- Keywords:
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- 7524 SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY / Magnetic fields