The nearby M-dwarf system Gliese 866 revisited
Jens Woitas, Christoph Leinert, Hartmut Jahrei{\ss}, Todd Henry, Otto, Franz, Larry Wasserman
TL;DR
This paper refines the orbital parameters and mass estimates of the Gliese 866 M-dwarf system using new observational data, confirming all components are near the hydrogen burning limit.
Contribution
It provides an improved orbit determination and mass measurement for Gliese 866 based on new speckle-interferometric and HST observations.
Findings
System mass is 0.34 ± 0.03 solar masses.
Component masses are consistent with the mass-luminosity relation.
All components are near the hydrogen burning mass limit.
Abstract
We present an improved orbit determination for the visual pair in the M-dwarf triple system Gliese 866 that is based on new speckle-interferometric and HST observations. The system mass is M = 0.34 +- 0.03 solar masses. The masses of the components derived using the mass-luminosity relation are consistent with this mass sum. All three components of Gliese 866 seem to have masses not far from the hydrogen burning mass limit.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Gamma-ray bursts and supernovae