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Globular Clusters in the Magellanic Clouds.I:BV CCD-Photometry for 11 Clusters

C. E. Corsi, R. Buonanno, F. Fusi Pecci, F. R. Ferraro, V. Testa, L. Greggio

astro-pharXiv:astro-ph/9409084

Abstract

We present BV CCD-data for 11 intermediate-age LMC clusters; the main conclusions are: 1. in the (Vto, Vcl,m) and (V-to, (Vto-Vcl,m)) planes the models yield a good overall description of the data; 2. with the current sample, it is impossible to firmly choose between "classical" and "overshooting" models; 3. the separation in colour between the MS band and the Red He-burning Clump is smaller than predicted by theoretical tracks; 4. the existence of the so-called "RGB phase-transition (Renzini and Buzzoni 1986) seems to be confirmed.

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