Bayesian re-analysis of the Gliese 581 exoplanet system

@article{Gregory2011BayesianRO,
  title={Bayesian re-analysis of the Gliese 581 exoplanet system},
  author={Philip C. Gregory},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2011},
  volume={415},
  pages={2523-2545}
}
  • P. Gregory
  • Published 2011
  • Physics
  • Monthly Notices of the Royal Astronomical Society
A re-analysis of Gliese 581 HARPS and HIRES precision radial velocity data was carried out with a Bayesian multiplanet Kepler periodogram (from one to six planets) based on a fusion Markov chain Monte Carlo algorithm. In all cases, the analysis included an unknown parametrized stellar jitter noise term. For the HARPS data set, the most probable number of planetary signals detected is five with a Bayesian false alarm probability of 0.01. These include the 3.1498 ± 0.0005, 5.3687 ± 0.0002, 12.927… Expand
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An apodized Kepler periodogram for separating planetary and stellar activity signals
  • P. Gregory
  • Physics, Medicine
  • Monthly notices of the Royal Astronomical Society
  • 2016
A new apodized Keplerian (AK) model is proposed for the analysis of precision radial velocity (RV) data to model both planetary and stellar activity (SA) induced RV signals. A symmetrical GaussianExpand
Signals embedded in the radial velocity noise - Periodic variations in the τ Ceti velocities
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'.Expand
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