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Estimation of Projection Effect of CMEs from the Onset Time of the Shock-Associated Type III Radio Burst

Gopalswamy, N.; Michalek, G.; Yashiro, S.

We present a new possibility to estimate the projection effects on coronal mass ejection (CME) measurements. It is well known that coronagraphic observations of CMEs are subject to projection effects. Fortunately, the WIND/WAVES observations of type III radio bursts associated with shock waves are free from projection effects. We assume that (1) h…