THE RADIAL VELOCITY DETECTION OF EARTH-MASS PLANETS IN THE PRESENCE OF ACTIVITY NOISE: THE CASE OF α CENTAURI Bb

@article{Hatzes2013THERV,
  title={THE RADIAL VELOCITY DETECTION OF EARTH-MASS PLANETS IN THE PRESENCE OF ACTIVITY NOISE: THE CASE OF $\alpha$ CENTAURI Bb},
  author={A. P. Hatzes},
  journal={The Astrophysical Journal},
  year={2013},
  volume={770},
  pages={133}
}
  • A. Hatzes
  • Published 2013
  • Physics
  • The Astrophysical Journal
We present an analysis of the publicly available HARPS radial velocity (RV) measurements for α Cen B, a star hosting an Earth-mass planet candidate in a 3.24 day orbit. The goal is to devise robust ways of extracting low-amplitude RV signals of low-mass planets in the presence of activity noise. Two approaches were used to remove the stellar activity signal which dominates the RV variations: (1) Fourier component analysis (pre-whitening), and (2) local trend filtering (LTF) of the activity… Expand
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