The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample

@article{Bonfils2011TheHS,
  title={The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample},
  author={Xavier Bonfils and Xavier Delfosse and St{\'e}phane Udry and Thierry Forveille and Michel Mayor and Christian Perrier and François Bouchy and Micha{\"e}l Gillon and Cristophe Lovis and Francesco A. Pepe and Didier Queloz and Nuno C. Santos and Damien S'egransan and J L Bertaux},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={549}
}
Searching for planets around stars with different masses helps us to assess the outcome of planetary formation for different initial conditions. The low-mass M dwarfs are also the most frequent stars in our Galaxy and potentially therefore, the most frequent planet hosts. Aims. We present observations of 102 southern nearby M dwarfs, using a fraction of our guaranteed time on the ESO/HARPS spectrograph. We observed for 460 h and gathered 1965 precise (~1-3 m/s) radial velocities (RVs), spanning… 

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