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Astron. Astrophys. 344, 172-176 (1999)


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Revised masses of [FORMULA] Centauri

D. Pourbaix 1, C. Neuforge-Verheecke  *  2 and A. Noels 2

1 Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, C.P. 226, Boulevard du Triomphe, B-1050 Bruxelles, Belgium
2 Institut d'Astrophysique et de Géophysique de l'Université de Liège, Avenue de Cointe 5, B-4000 Liège, Belgium

Received 7 October 1998 / Accepted 7 January 1999

Abstract

With the precise radial velocities lately published (Murdoch et al., 1993), a simultaneous least-squares adjustment of all visual and spectroscopic observations of the [FORMULA] 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 (1978) but yields upward revisions of the distance and masses. We examine the effects these revisions on the evolutionary status of the system.

Key words: stars: binaries: spectroscopic – stars: binaries: visual – stars: fundamental parameters – stars: individual: ff Cen

* Chargé de Recherches of the Belgian Fund for Scientific Research

Send offprint requests to: D. Pourbaix (pourbaix@astro.ulb.ac.be)

© European Southern Observatory (ESO) 1999

Online publication: March 10, 1999

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