THREE SUPER-EARTHS ORBITING HD 7924

@article{Fulton2015THREESO,
  title={THREE SUPER-EARTHS ORBITING HD 7924},
  author={Benjamin J. Fulton and Lauren M. Weiss and Evan J. Sinukoff and Howard T. Isaacson and Andrew W. Howard and Geoffrey W. Marcy and Gregory W. Henry and Bradford P. Holden and Robert Kibrick},
  journal={The Astrophysical Journal},
  year={2015},
  volume={805}
}
We report the discovery of two super-Earth-mass planets orbiting the nearby K0.5 dwarf HD 7924, which was previously known to host one small planet. The new companions have masses of 7.9 and 6.4 M ⨁ ?> , and orbital periods of 15.3 and 24.5 days. We perform a joint analysis of high-precision radial velocity data from Keck/HIRES and the new Automated Planet Finder Telescope (APF) to robustly detect three total planets in the system. We refine the ephemeris of the previously known planet using 5… 

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