The massive binary population of the starburst cluster Westerlund 1

Details The massive binary population of the starburst cluster Westerlund 1 The massive binary population of the starburst cluster Westerlund 1

2010-10-29

arxiv.org/abs/1010.6270v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

5 pages, 3 figures, to appear in the proceedings of the 39th Liege International Astrophysical Colloquium on "The multi-wavele

Scientific paper

We present initial results from a long-baseline radial velocity survey for
massive binaries in the cluster Westerlund 1. Four systems are examined: the
dust-producing WC binary W239, the double-lined eclipsing binary W13, and the
single-lined B0 supergiants W43a and W3003. Finally, the evolutionary
implications for the population of massive stars in Westerlund 1 are discussed.

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