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Fig. 1
Global Hα view (AAO/UKST Hα image, Parker et al. 2005) of NGC 6334 and NGC 6357. The position of the objects discussed in the text are indicated. The sample of O to B3 stars are overlaid (labelled “O” and “B”). Red symbols indicate stars with X-ray counterparts. The green and bold red symbols are stars from the literature.
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