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Fig. 15.
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Montage of the Pa-11 line for W1021 (=B07−DEB1, P = 4.45 days; left panel) and W1002 (O9 II–III + O?; right panel). Vertical lines mark the mean Pa-11 RV for stars in Westerlund 1. Spectra are from MJDs 56483.2 (top), 56494.1 (middle), and 56508.1 (bottom), and have been rebinned and filtered to reduce noise.
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