[en] With the precise radial velocities lately published \cite{Murdoch-1993:b}, a simultaneous least-squares adjustment of all visual and spectroscopic observations of the alpha Centauri system is now possible and likely to yield some accurate information. Such an orbit determination leads to a mass ratio in agreement with the astrometric estimate of Kamper & Wesselink \cite*{Kamper-1978} but yields upward revisions of the distance and masses. We examine the effects these revisions on the evolutionary status of the system.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Pourbaix, D.; Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, C.P. 226, Boulevard du Triomphe, B-1050 Bruxelles, Belgium
Neuforge-Verheecke; Université de Liège - ULiège > Institut d’Astrophysique et de Géophysique
Noels-Grötsch, Arlette ; Institut d'Astrophysique et de Géophysique de l'Université de Liège, Avenue de Cointe 5, B-4000 Liège, Belgium
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