Liu, Ying D., Xiaowei Zhao, and Bei Zhu, Propagation and Interaction Properties of Successive Coronal Mass Ejections in Relation to a Complex Type II Radio Burst, ApJ, 849, 112 (2017) (ADS)
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Date: 2019 December 30
"CME cannibalism" [1] colorfully, as in the cartoon, describes what happens when an early sluggish CME is overtaken by a later faster one. This means that two flux ropes must merge somehow, and in the process we see particle acceleration and radio-wave signatures.
[1] Gopalswamy et al., 2001