Glatt, Katharina; Grebel, E K; Gallagher, John S; Nota, Antonella; Sabbi, Elena; Sirianni, Marco; Clementini, G; Da Costa, Gary; Tosi, Monica; Harbeck, Daniel; Koch, Andreas; Kayser, Adrea
We present structural parameters for the seven intermediate-age and old star clusters NGC121, Lindsay1, Kron3, NGC339, NGC416, Lindsay38, and NGC419 in the Small Magellanic Cloud (SMC). We fit King profiles and Elson, Fall, and Freeman profiles to both surface-brightness and star-count data taken with the Advanced Camera for Surveys aboard the Hubble Space Telescope. Clusters older than ∼ 1Gyr show a spread in cluster core radii that increases with age, while the youngest clusters have...[Show more]
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