STEP Survey II: Structural Analysis of 170 star clusters in the SMC

Understand

We derived surface brightness profiles in the \emph{g} band for 170 Small Magellanic Cloud (SMC) star clusters (SCs) mainly located in the central region of the galaxy.

• We provide a set of homogeneous structural parameters obtained by fitting Elson, Fall \& Freeman (EFF) and King models.
• Through a careful analysis of their colour-magnitude diagrams (CMDs) we also supply the ages for a subsample of 134 SCs.
• For the first time, such a large sample of SCs in the SMC is homogeneously characterized in terms of their sizes, luminosities and masses, widening the probed region of the parameter space, down to hundreds of solar masses.