... OB2[*]
Based on observations collected at the Centro Astronómico Hispano-Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck Institut für Astronomie and the Instituto de Astrofísica de Andalucía (CSIC).
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...[*]
Tables 1-9 are only available in electronic form at http://www.aanda.org
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...[*]
Visiting astronomer at the Vatican Observatory.
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... IRAF[*]
IRAF is distributed by NOAO, which is operated by the Association of Universities for Research in Astronomy, Inc., under contract to the National Science Foundation.
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... paper[*]
We inadvertently also observed star #044, already classified by Hanson (2003), as noted in Table 1. For consistency, we use here our own classification. Note in any case that the difference between both (O9.7II in Hanson 2003, B0II according to our own classification) is minimal.
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Copyright ESO 2008