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arxiv: 1009.3508 · v1 · pith:JUGLQWRTnew · submitted 2010-09-17 · 🌌 astro-ph.SR

Masses of the astrometric SB2 zeta Ori A

Th. Rivinius , C.A. Hummel , O. Stahl This is my paper
classification 🌌 astro-ph.SR
keywords massessystemzetaastrometriccomparedderiveddynamicensuring
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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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