16-20 MJup Radial Velocity Companion Orbiting the Brown Dwarf Candidate Cha Hα 8

@article{Joergens20071620MR,
  title={16-20 MJup Radial Velocity Companion Orbiting the Brown Dwarf Candidate Cha H$\alpha$ 8},
  author={V. Joergens and A. Mueller},
  journal={The Astrophysical Journal},
  year={2007},
  volume={666}
}
We report the discovery of a 16-20 MJup radial velocity companion around the very young (~3 Myr) brown dwarf candidate Cha Hα 8 (M5.75-M6.5). Based on high-resolution echelle spectra of Cha Hα 8 taken between 2000 and 2007 with UVES at the VLT, a companion was detected through RV variability with a semiamplitude of 1.6 km s-1. A Kepler fit to the data yields an orbital period of the companion of 1590 days and an eccentricity of e = 0.49. A companion minimum mass M2 sin i between 16 and 20 MJup… Expand

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