Distribution of CMEs with Different Angular Widths and Comparison with the Phase of Sunspot Number in the 23rd Solar Cycle

The variation of the number of coronal mass ejections (CMEs) with different angular widths in the period of 1996-2008 is analyzed statistically in this paper, together with a comparison of the feature of time variation between the number of CMEs with some typical angular widths and the number of sunspots.The analyzed result indicates that the number of CMEs with the angular widths of 0∘∼ 180∘ occupies an over 95% proportion in the total number of CMEs, the full-halo CMEs takes a proportion of 2.83%, and the number of CMEs with the angular widths of 301∘∼ 359∘ is very small. There are three peaks in the number distribution of CMEs with the angular widths of 0∘∼ 60∘, which is not coincident with the feature of the time variation of sunspot number. There is no double-peaked number distribution for the CMEs with the angular widths of 121∘∼ 180∘. The number distribution of the full-halo CMEs has double peaks evidently, with the first peak value at 2001, and the second peak value at 2005, which is not synchronized with the variation of sunspot number.