An extrasolar planetary system with three Neptune-mass planets

@article{Lovis2006AnEP,
  title={An extrasolar planetary system with three Neptune-mass planets},
  author={C. Lovis and M. Mayor and F. Pepe and Y. Alibert and W. Benz and F. Bouchy and A. Correia and J. Laskar and C. Mordasini and D. Queloz and N. Santos and S. Udry and J. Bertaux and J. Sivan},
  journal={Nature},
  year={2006},
  volume={441},
  pages={305-309}
}
Over the past two years, the search for low-mass extrasolar planets has led to the detection of seven so-called ‘hot Neptunes’ or ‘super-Earths’ around Sun-like stars. These planets have masses 5–20 times larger than the Earth and are mainly found on close-in orbits with periods of 2–15 days. Here we report a system of three Neptune-mass planets with periods of 8.67, 31.6 and 197 days, orbiting the nearby star HD 69830. This star was already known to show an infrared excess possibly caused by… Expand
Extrasolar planets: A neptunian triplet
Extrasolar planets: An Earth-sized duo
Formation and structure of the three Neptune-mass planets system around HD 69830
Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars
A DOUBLE PLANETARY SYSTEM AROUND THE EVOLVED INTERMEDIATE-MASS STAR HD 4732
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