The ages of the Large Magellanic Cloud blue globular clusters NGC 2133 and NGC 2134

Details The ages of the Large Magellanic Cloud blue globular clusters NGC 2133 and NGC 2134 The ages of the Large Magellanic Cloud blue globular clusters NGC 2133 and NGC 2134

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96...28h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Jan. 1984, p. 28-37.

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12

Astronomical Photometry, Globular Clusters, Magellanic Clouds, Stellar Evolution, Abundance, Chronology, Giant Stars, Main Sequence Stars, Supergiant Stars

Scientific paper

Well populated main sequences and giant sequences are noted in color-magnitude diagrams of the large, populous LMC clusters NGC 2133 and NGC 2134. The application of age criteria primarily based on the main sequence stars and evolved blue supergiants yields ages of 130 and 110 million years for them, respectively, and the colors of the giants allow heavy element abundances to be estimated which imply an Fe/H ratio of about -1.0 for both clusters. It is also noted that NGC 2134 may be one of the youngest LMC clusters endowed with a carbon star. The characteristics of the superluminous giants appearing near the centers of both clusters are similar to those appearing in many other populous LMC clusters.

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