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2010-09-17
Masses of the astrometric SB2 \zeta Ori A
Th. RiviniusC. A. HummelO. Stahl
文献摘要
We report the first dynamic mass for an O-type supergiant, the interferometrically resolved SB2 system \zeta Ori A (O9.5Ib+B0/1). The separation of the system excludes any previous mass-transfer, ensuring that the derived masses can be compared to single star evolutionary tracks.
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