On the Double-Planet System around HD 83443

@article{Butler2002OnTD,
  title={On the Double-Planet System around HD 83443},
  author={R. Paul Butler and Geoffrey W. Marcy and Steven S. Vogt and C. G. Tinney and Hugh R A Jones and Chris McCarthy and Alan John Penny and Kevin Apps and B. Reindl Obs. Carnegie Inst. Washington and University of Southern California and Berkeley and San Diego State University and UCOLick Observatory and Anglo-Australian Observatory and Astrophysics Research Institute and Liverpool John Moores University and UK. and Rutherford Appleton Laboratory and Physics and Astronomy and University of Sussex and Faculty of Nuclear Sciences and University of Southern Queensland and Australia.},
  journal={The Astrophysical Journal},
  year={2002},
  volume={578},
  pages={565-572}
}
The Geneva group has reported two Saturn-mass planets orbiting HD 83443 (K0 V) with periods of 2.98 and 29.8 days. The two planets have raised interest in their dynamics because of the possible 10 : 1 orbital resonance and the strong gravitational interactions. We report precise Doppler measurements of HD 83443 obtained with the Keck/HIRES and the Anglo-Australian Telescope (AAT) UCLES spectrometers. These measurements strongly confirm the inner planet with a period of 2.985 days, with orbital… Expand

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