paper

Masses of the astrometric SB2 ζOri A

arXiv:1009.3508 · doi:10.1017/S1743921311011367

Abstract

We report the first dynamic mass for an O-type supergiant, the interferometrically resolved SB2 system ζOri 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.

arXiv comment2 pages, 1 figure, IAUS 272 - Active OB Stars: Structure, Evolution, Mass Loss and Critical Limits