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- Volume 80 - Année 2011
- The massive binary population of the starburst cluster Westerlund 1
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The massive binary population of the starburst cluster Westerlund 1
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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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Acerca de: B.W. Ritchie
Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, U.K.
Acerca de: J.S. Clark
Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, U.K.
Acerca de: I. Negueruela
Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain