Relationship of coronal mass ejections with solar flares, prominences and coronal holes

Physics

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Stellar Mass Ejection, Solar Corona, Coronal Holes, Solar Activity Effects, Solar Cosmic Rays, Solar Flares, Solar Prominences, Solar Radio Bursts, Solar Physics, Scientific Satellites, Satellite Observation, Data Correlation, Temporal Resolution, Spatial Resolution, Time Series Analysis

Scientific paper

We have investigated more than 450 coronal mass ejections (CME's) observed between 1979-1985 (by SOLWIND) having speed more than 500 km/s. To carry out the study we have used the method of time and spatial correlations. From the study we have found the following: (1) About 50% CMEs are related with coronal holes; (2) About 15% CMEs are related with solar flares; (3) About 25% CMEs are associated with eruptive prominence; and (4) About 10% CMEs are not related with any solar phenomena. The relationship of CMEs and solar radio bursts are also studied. In the light of above, we are of the view that there may be two types of CMEs. The origin of one of them may be related with coronal holes and that for other may be solar flares and prominences.

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