Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307

@article{Tuomi2013HabitablezoneSC,
  title={Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307},
  author={Mikko Tuomi and Guillem Anglada-Escud{\'e} and Enrico Gerlach and Hugh R. A. Jones and Ansgar Reiners and Eugenio Jose Rivera and Steven S. Vogt and R. Paul Butler},
  journal={Astronomy and Astrophysics},
  year={2013},
  volume={549}
}
Context. The K2.5 dwarf HD 40307 has been reported to host three super-Earths. The system lacks massive planets and is therefore a potential candidate for having additional low-mass planetary companions. Aims. We re-derive Doppler measurements from public HARPS spectra of HD 40307 to confirm the significance of the reported signals using independent data analysis methods. We also investigate these measurements for additional low-amplitude signals. Methods. We used Bayesian analysis of our… 
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