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Revised masses of α Centauri

par Pourbaix, Dimitri ;Neuforge-Verheecke, Corinne;Noels, Arlette
Référence Astronomy & astrophysics, 344, 1, page (172-176)
Publication Publié, 1999

Article révisé par les pairs

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Résumé :

With the precise radial velocities lately published (Murdoch et al., 1993), a simultaneous least-squares adjustment of all visual and spectroscopic observations of the a 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.