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Binary Clusters in the Magellanic Clouds

Published online by Cambridge University Press:  25 May 2016

A. Dieball  and
E. K. Grebel
A. Dieball
Affiliation:
Sternwarte der Universität, Auf dem Hügel 71, 53121 Bonn, Germany
E. K. Grebel
Affiliation:
UCO/Lick Observatory, UCSC, Santa Cruz, CA 95064, USA

Extract

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Binary clusters account for more than 10% of the cluster population in the Magellanic Clouds. Statistically fewer than 50% of the found pairs are expected to be chance superpositions. We are studying binary cluster candidates in the Magellanic Clouds to investigate whether the cluster pairs are of common origin and if they show evidence for interaction. We determine ages for the cluster components through isochrone fitting (isochrone models based on Schaerer et al. 1993, and Bertelli et al. 1994) to the colour magnitude diagrams (CMDs). We investigate the stellar spatial density in the surroundings of the clusters to look for signs of possible interactions between the components.

Type
Part 6. Stellar Clusters
Information
Symposium - International Astronomical Union , Volume 190: New Views of the Magellanic Clouds , 1999 , pp. 440 - 442
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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Vallenari, A., Bettoni, D., & Chiosi, C. 1998, A&A 331, 506 Google Scholar