Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-09-23
Astronomy and Astrophysics
Astrophysics
Accepted in the Letters section of A&A
Scientific paper
We present very accurate orbital parameters and mass measurements (2.4% accuracy) for the well known very low mass triple system Gl 866. We obtain first orbital elements for the short-period orbit and greatly improve the long period orbit. All three stars have masses close to 0.1 solar masses, and the system thus provides the strongest constraints to date on the mass-luminosity relation close to the brown dwarf limit.
Beuzit Jean Luc
Delfosse Xavier
Forveille Thierry
Mayor Marcel
Perrier Ch.
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