Abstract:
Here we present a preliminary analysis of a helical eruptive
prominence at the east limb of the Sun on 21 April 2001. Unusually this
eruption is associated with a double CME. We have tried to study the
morphology of the event, energy budget of the prominence and associated
CMEs. Our analysis shows that the prominence and first CME started
simultaneously from the limb and prominence carries sufficient energy
to feed both the CMEs. Moreover, it is also concluded that CMEs are
magnetically driven and internally powered.