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On the origin of double main-sequence turn-offs in star clusters of the Magellanic Clouds
K. Bekki, A. D. Mackey
Recent observational studies of intermediate-age star clusters (SCs) in the Large Magellanic Cloud (LMC) have reported that a significant number of these objects show double main-s…
The nucleus of the Sagittarius dSph galaxy and M54: a window on the process of galaxy nucleation
M. Bellazzini, R. A. Ibata, S. C. Chapman +6
We present the results of a thorough study of the nucleus of the Sgr dwarf spheroidal galaxy and of the bright globular cluster M54 that resides within the same nucleus (Sgr,N). We…
Multiple stellar populations in three rich Large Magellanic Cloud star clusters
A. D. Mackey, P. Broby Nielsen, A. M. N. Ferguson +1
We present deep colour-magnitude diagrams for three rich intermediate-age star clusters in the Large Magellanic Cloud, constructed from archival ACS F435W and F814W imaging. All th…