Abstract
Surface photometry of nine Magellanic Cloud star clusters is presented. Three star clusters are binaries with double peak in the profiles. Four appear to have a significant fine structure in the observed light profiles in terms of bumps, while the remaining ones are taken as comparison clusters with smooth profiles. A double peak is also observed in NGC 376, K 50 and K 54 but these clusters do not a have a companion. Together with NGC 1810 which has an unusual profile EFF profiles do not describe them. Isophotal maps are complex for them. NGC 376, K 50 and K 54 present apparently triangular outer isophots, while NGC 376, K 50 and NGC 1810 have isophotal gaps that extend to the cluster central parts. In the numerical simulations of cluster encounters by de Oliveira, Bica, & Dottori (2000, MNRAS, 311, 589) similar structures can be seen. We conclude that unusual cluster profiles and isophotal distributions may be related to star cluster mergers.
