Sun: magnetic topology Sun: corona 8 Solar wind 6 Sun: UV radiation 6 Sun: coronal mass ejections (CMEs) 5 Aspect ratio 4 Clouds 4 Cross section 4 Dynamical evolution 4 Expansion 4 Expansion rate 4 Flux ropes 4 Global quantities 4 Helicities 4 In-situ observations 4 Interplanetary coronal mass ejections 4 Interplanetary medium 4 Interplanetary spacecraft 4 Interstellar mediums 4 Link structure 4 Magnetic clouds 4 Magnetic configuration 4 Magnetic energies 4 Magnetic fields 4 Magnetic flux 4 Magnetic flux ropes 4 Magnetic force 4 Magnetic-field intensity 4 Magnetized plasmas 4 Magnetohydrodynamics 4