most citedOn the nature of a secondary main sequence turn-off in the rich LMC cluster NGC 1868

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astro-ph2002★ 10 cited

On the nature of a secondary main sequence turn-off in the rich LMC cluster NGC 1868

B. Santiago, L. Kerber, R. Castro +1

Evidence for a second main-sequence turn-off in a deep colour-magnitude diagram of NGC 1868 is presented. The data were obtained with HST/WFPC2 and reach down to m_{555} ~ 25. Besi…