An ultracool Star's Candidate Planet

@article{Pravdo2009AnUS,
  title={An ultracool Star's Candidate Planet},
  author={S. Pravdo and S. Shaklan},
  journal={The Astrophysical Journal},
  year={2009},
  volume={700},
  pages={623-632}
}
We report here the discovery of the first planet around an ultracool dwarf star. It is also the first extrasolar giant planet astrometrically discovered around a main-sequence star. The statistical significance of the detection is shown in two ways. First, there is a 2 × 10–8 probability that the astrometric motion fits a parallax-and-proper-motion-only model. Second, periodogram analysis shows a false alarm probability of 3 × 10–5 that the discovered period is randomly generated. The planetary… Expand
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