Signals embedded in the radial velocity noise - Periodic variations in the τ Ceti velocities

  title={Signals embedded in the radial velocity noise - Periodic variations in the τ Ceti velocities},
  author={M. Tuomi and H. Jones and J. Jenkins and C. Tinney and R. Butler and S. Vogt and J. R. Barnes and R. Wittenmyer and S. O'toole and J. Horner and J. Bailey and B. Carter and D. Wright and G. Salter and D. Pinfield},
  journal={Astronomy and Astrophysics},
  • M. Tuomi, H. Jones, +12 authors D. Pinfield
  • Published 2013
  • Physics
  • Astronomy and Astrophysics
  • Context. The abilities of radial velocity exoplanet surveys to detect the lowest-mass extra-solar planets are currently limited by a combination of instrument precision, lack of data, and 'jitter'. Jitter is a general term for any unknown features in the noise, and reflects a lack of detailed knowledge of stellar physics (asteroseismology, starspots, magnetic cycles, granulation, and other stellar surface phenomena), as well as the possible underestimation of instrument noise. Aims. We study… CONTINUE READING
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