A color-magnitude diagram for the Large Magellanic Cloud cluster NGC 1847.

Astronomy and Astrophysics – Astronomy

Scientific paper

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C-M Diagrams:Globular Clusters, Globular Clusters:C-M Diagrams, Globular Clusters:Element Abundances, Globular Clusters:Magellanic Clouds, Magellanic Clouds:Globular Clusters

Scientific paper

Star counts to V ≍ 21 in and around the LMC cluster NGC 1847 compare well with King models. A core radius of 1.2 pc and a tidal radius of 12 pc are derived. The counts indicate that the mass of stars in the cluster brighter than MV = +1m.0 is ˜104 Msun. A color-magnitude diagram shows a well-populated main sequence and sparsely-populated but well-defined giant branch. The authors derive an age for the cluster of 25 ± 10 million years and find that it has a heavy element abundance of Z ˜ 0.01.

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