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AM-3: An Intermediate-Age Star Cluster in the Extreme Outskirts of the SMC

Published online by Cambridge University Press:  25 May 2016

G. S. Da Costa
G. S. Da Costa*
Affiliation:
Mt. Stromlo & Siding Spring Observatories, Private Bag, Weston Creek Post Office, ACT 2611, Australia

Extract

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The faint star cluster AM-3 is one of three such objects discovered by Madore & Arp (1979). AM-1 has since been shown to be one of the most distant of the Galaxy's halo globular clusters, while AM-2 is now recognized as a distant, reddened Galactic open cluster. AM-3, however, has been largely ignored despite the fact that it lies only ~4.5 degrees from the center of the SMC making association with the SMC a possibility. This possibility was strengthened by the results of Irwin (1990) who showed that AM-3 lies (in projection) just within the outermost density contours of the SMC field population.

Type
Part 6. Stellar Clusters
Information
Symposium - International Astronomical Union , Volume 190: New Views of the Magellanic Clouds , 1999 , pp. 446 - 447
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Bertelli, G., et al. 1994, A&AS, 106, 275 Google Scholar
Da Costa, G.S., & Hatzidimitriou, D. 1998, AJ, 115, 1934 Google Scholar
Irwin, M.J. 1990, in IAU Symp. 148, eds Haynes, R. and Milne, D., (Kluwer: Dordrecht), p. 453 Google Scholar
Madore, B.F., & Arp, H.C. 1979, ApJ, 227, L103 Google Scholar
Mathewson, D.S., & Ford, V.L. 1984, in IAU Symp. 108, eds van den Bergh, S. and de Boer, K., (Kluwer: Dordrecht), p. 125 Google Scholar