STRONG CONSTRAINTS TO THE PUTATIVE PLANET CANDIDATE AROUND VB 10 USING DOPPLER SPECTROSCOPY

@article{AngladaEscud2010STRONGCT,
  title={STRONG CONSTRAINTS TO THE PUTATIVE PLANET CANDIDATE AROUND VB 10 USING DOPPLER SPECTROSCOPY},
  author={Guillem Anglada-Escud{\'e} and Evgenya L. Shkolnik and Alycia J. Weinberger and Ian B. Thompson and David J. Osip and John H. Debes},
  journal={The Astrophysical Journal Letters},
  year={2010},
  volume={711},
  pages={L24 - L29}
}
We present new radial velocity (RV) measurements of the ultra-cool dwarf VB 10, which was recently announced to host a giant planet detected with astrometry. The new observations were obtained using optical spectrographs (MIKE/Magellan and ESPaDOnS/CFHT) and cover 65% of the reported period of 270 days. The nominal precision of the new Doppler measurements is about 150 m s−1 while their standard deviation is 250 m s−1. However, there are indications that such a larger variation is due to… 

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