Snapshot of the plasma β (colour scale) and magnetic field lines (yellow) from the slow wind – single eruption simulation taken 25 h from the start of shearing, showing the compressed arcade and the trailing part of the CME on the right side. The orange field lines show the magnetic configuration of the northern arcade from the same simulation, after it has relaxed to its original state, 155 h from the start of shearing. The X-points form between the streamer cusp and blobs and evolve further from the Sun as time increases.