Toward understanding the early stages of an impulsively accelerated coronal mass ejection
Toward understanding the early stages of an impulsively accelerated coronal mass ejection
The expanding magnetic flux in coronal mass ejections (CMEs) often forms a cavity. A spherical model is simultaneously fit to STEREO EUVI and COR1 data of an impulsively accelerated CME on 25 March 2008, which displays a well-defined extreme ultraviolet (EUV) and white-light cavity of nearly circular shape already at …