  As a follow up to our recent study of a large sample of LMC clusters
(astro-ph/0209031), we have conducted a similar study of the structures of ten
SMC clusters, using archival Hubble Space Telescope snapshot data. We present
surface brightness profiles for each cluster, and derive structural parameters,
including core radii and luminosity and mass estimates, using exactly the same
procedure as for the LMC sample. Because of the small sample size, the SMC
results are not as detailed as for the larger LMC sample. We do not observe any
post core-collapse clusters (although we did not expect to), and there is
little evidence for any double clusters in our sample. Nonetheless, despite the
small sample size, we show for the first time that the SMC clusters follow
almost exactly the trend in core radius with age observed for the LMC system,
including the apparent bifurcation at several hundred Myr. This further
strengthens our argument that this relationship represents true physical
evolution in these clusters, with some developing significantly expanded cores
due to an as yet unidentified physical process. Additional data, both
observational and from N-body simulations, is still required to clarify many
issues.
