We study the short--term topological changes of equatorial and polar coronalhole (CH) boundaries, such as a variation of their area and disintegration,associated to reconnection with nearby (within 15$^\circ$ distance) quiescentprominence magnetic fields leading to eruptions and subsequent Coronal MassEjections (CMEs). The examples presented here correspond to the recent solarminimum years 2008 and 2009. We consider a temporal window of one day betweenthe CH topological changes and the start and end times of prominence eruptionsand onset of CMEs. To establish this association we took into accountobservational conditions related to the instability of prominence/filaments,the occurrence of a CME, as well as the subsequent evolution after the CME. Wefound an association between short--term local topological changes in CHboundaries and the formation/disappearance of bright points near them, as wellas, between short--term topological changes within the whole CH and eruptionsof nearby quiescent prominences followed by the appearance of one or more CMEs.
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