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Three Old LMC Globular Clusters

Published online by Cambridge University Press:  25 May 2016

Jennifer A. Johnson
Affiliation:
University of California, Santa Cruz, CA 95064, USA
Michael Bolte
Affiliation:
UCO/Lick Observatory, UCSC, Santa Cruz, CA 95064, USA
Howard E. Bond
Affiliation:
Space Telescope Science Institute, Baltimore, MD 21218, USA
James E. Hesser
Affiliation:
National Research Council, Victoria, B.C. V8X 4M6 Canada
Claudia M. de Oliveira
Affiliation:
European Southern Observatory, Garching, Germany
Harvey B. Richer
Affiliation:
University of British Columbia, Vancouver, BC V6T 1Z4, Canada
Peter B. Stetson
Affiliation:
National Research Council, Victoria, B. C. V8X 4M6 Canada
Don A. Vandenberg
Affiliation:
University of Victoria, Victoria, BC V8W 3P6, Canada

Abstract

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We used deep HST imaging of three LMC clusters, NGC 2257, NGC 1466 and Hodge 11, to determine their ages relative to Milky Way clusters. They all have similar ages to within ± 1 Gyr. For NGC 2257 and NGC 1466, we measured the blue straggler specific frequencies and find them to be similar to those of Galactic clusters.

Type
Part 6. Stellar Clusters
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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