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This magnetohydrodynamic simulation of the development of a homologous sequence of two coronal mass ejections (CMEs) demonstrates their so-called cannibalistic behavior. These CMEs originate from the repeated formations and partial eruptions of kink unstable flux ropes as a result of continued emergence of a twisted flux rope across the lower boundary into a preexisting coronal potential arcade field.
The simulation shows that a CME erupting into the open magnetic field created by a preceding CME has a higher speed. The second CME is cannibalistic, catching up and merging with the first into a single, fast CME before exiting the domain.Image credit: Solar Superstorms Production Group, Inc.
