The circumstellar environment and evolutionary state of the supergiant B[e] star Wd1-9

  title={The circumstellar environment and evolutionary state of the supergiant B[e] star Wd1-9},
  author={J. S. Clark and B. Ritchie and I. Negueruela},
  journal={Astronomy and Astrophysics},
Context. Historically, supergiant (sg)B[e] stars have been difficult to include in theoretical schemes for the evolution of massive OB stars. Aims. The location of Wd1-9 within the coeval starburst cluster Westerlund 1 means that it may be placed into a proper evolutionary context and we therefore aim to utilise a comprehensive multiwavelength dataset to determine its physical properties and consequently its relation to other sgB[e] stars and the global population of massive evolved stars… Expand

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