The massive binary population of the starburst cluster Westerlund 1
B.W. Ritchie,
Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, U.K.
J.S. Clark,
Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, U.K.
I. Negueruela,
Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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.
Pour citer cet article
B.W. Ritchie, J.S. Clark & I. Negueruela, «The massive binary population of the starburst cluster Westerlund 1», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 628 - 633 URL : https://popups.uliege.be/0037-9565/index.php?id=3090.