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α Centauri revisited: when the spectroscopic and the astrometric mass ratios become consistent

Published online by Cambridge University Press:  12 April 2016

D. Pourbaix
D. Pourbaix*
Affiliation:
Royal Observatory of Belgium, Avenue circulaire 3, B-1180 Bruxelles, Belgium, e-mail:pourbaix@astro.ulb.ac.be

Abstract

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Precise radial velocities lately published (Murdoch, Hearnshaw & Clark 1993) allow a simultaneous least-squares adjustment of all visual and spectroscopic observations. Starting with the same data as Murdoch & Hearnshaw (1993), we obtain a mass ratio that agrees better with Kamper & Wesselink’s (1978) astrometric estimate. Our results suggest upward revisions of the distance to the system as well as of the individual masses of the components.

Type
Part 8. Binary Stars
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 340 - 346
Copyright
Copyright © Astronomical Society of the Pacific 1999

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