Evidence From Coronal Observations of Magntic Field Structure in CMEs

A Slow CME is Deflected

•Slow CME (290 km/s) overtaken by a fast CME (660 km/s)

•The slow CME core deflected to the left from its trajectory

•Before reaching the slow CME, the fast one produces a normal type II. During collision with the slow CME, the enhanced radio emission is produced

LASCO C3 movie