Definitions for "Coronal mass ejection"
A bubble of gas and charged particles, similar to a solar flare, ejected from the Sun over several hours.
A reconfiguration of the Sun's magnetic field in the corona that results in the ejection of a cloud of coronal plasma (i.e. positively charged ions and negatively charged electrons). May be associated with solar flares and magnetic fields in a solar active (sunspot) region. Typically associated with major magnetic storms when the cloud is Earth-directed, the IMF is 'southward' and the solar wind speed is elevated. High-energy particles may be accelerated to near-light velocities by the shock front ahead of a CME. (Also see Halo CME). Back to the top.
An explosion that takes place in the corona that ejects particles into the solar wind, caused by an energy release in the Sun's magnetic field