Accurate masses of very low mass stars : II The very low mass triple system Gl 866 ⋆
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چکیده
ASTRONOMY AND ASTROPHYSICS Accurate masses of very low mass stars: II The very low mass triple system Gl 866 Abstract. 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 M ⊙ , and the system thus provides the strongest constraints to date on the mass-luminosity relation close to the brown dwarf limit.
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