Constraining the difference in convective blueshift between the components of alpha Centauri with precise radial velocities

  title={Constraining the difference in convective blueshift between the components of alpha Centauri with precise radial velocities},
  author={Dimitri Pourbaix and David L. Nidever and Chris McCarthy and R. Paul Butler and C. G. Tinney and Geoffrey W. Marcy and Hugh R. A. Jones and Alan John Penny and B. D. Carter and François Bouchy and Francesco A. Pepe and John B. Hearnshaw and Jovan Skuljan and David J. Ramm and D. Kent},
  journal={Astronomy and Astrophysics},
New radial velocities of Cen A & B obtained in the framework the Anglo-Australian Planet Search programme as well as in the CORALIE programme are added to those by Endl et al. (2001) to improve the pre- cision of the orbital parameters. The resulting masses are 1:105 0:0070 M and 0:934 0:0061 M for A and B respectively. The factors limiting how accurately these masses can be derived from a combined visual-spectroscopic solution are investigated. The total eect of the convective blueshift and… 

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