The CME Group’s theoretical research focuses on advancing the fundamental understanding of coronal mass ejections as systems with complex magnetic topology. This is done through developing a model to quantify the magnetic helicity of the magnetic field of coronal mass ejections after eruption. Magnetic helicity is treated as the key quantity representing the magnetic topology being conserved even when reconnection occurs. Magnetohydrodynamic simulations are used as labs to test and constrain the developed model.
 
  Twist and Writhe as describing quantities of a group of field lines in a tube
