The massive binary population of the starburst cluster Westerlund 1

2010/10/29 by B. W. Ritchie, Ritchie, B. W., J. S. Clark +3
Physics and Astronomy · #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.SR

paper · pdf · doi:10.48550/arxiv.1010.6270

5 pages, 3 figures, to appear in the proceedings of the 39th Liege International Astrophysical Colloquium on "The multi-wavelength view of hot, massive stars", Liege, 12-16 July 2010

arxiv created 2010/10/29 · arxiv updated 2010/11/01

Abstract

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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