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The temporal relationship between coronal mass ejections (CMEs) and associated solar ares is of great importance to understanding the origin of CMEs, but it has been difficult to study owing to the nature of CME detection. In this paper, we investigate this issue using the Large Angle and Spectrometric Coronagraph and the EUV Imaging Telescope observations combined with GOES soft X-ray observations. We present four well-observed events whose source regions are close to the limb such that we are able to directly measure the CMEs initial evolution in the low corona (D13 without any R extrapolation ; this height range was not available in previous space-based coronagraph observations.
Zhang et al. (Thu,) studied this question.