Abstract
The X-ray emission from bimodal clusters is analyzed to determine whether or not there is evidence for cooling in the center of the clusters. All of the 14 clusters have long cooling times. When compared with the frequency of clusters with short cooling times in nearby rich clusters, this suggests a significant lack of cooling in the bimodal clusters. Tidal forces between the components of the bimodal clusters are insufficient to disrupt an existing cooling flow; apparently one has not yet formed. The clusters in the bimodal systems individually have luminosities comparable to nearby clusters and have relatively short merge times so that they represent an intermediate evolutionary stage in the formation of a luminous, rich cluster in a hierarchical clustering scenario
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