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Coronal mass ejections and their sheath regions in interplanetary space

Pulkkinen, Tuija I.; Koskinen, Hannu E. J.; Kilpua, Emilia

Interplanetary coronal mass ejections (ICMEs) are large-scale heliospheric transients that originate from the Sun. When an ICME is sufficiently faster than the preceding solar wind, a shock wave develops ahead of the ICME. The turbulent region between the shock and the ICME is called the sheath region. ICMEs and their sheaths and shocks are all in…