Bayesian Methods for Analysis and Adaptive Scheduling of Exoplanet Observations

@article{Loredo2012BayesianMF,
  title={Bayesian Methods for Analysis and Adaptive Scheduling of Exoplanet Observations},
  author={Thomas Loredo and James O. Berger and David F. Chernoff and Merlise A. Clyde and Bin Liu},
  journal={Statistical Methodology},
  year={2012},
  volume={9},
  pages={101-114}
}
Abstract We describe work in progress by a collaboration of astronomers and statisticians developing a suite of Bayesian data analysis tools for extrasolar planet (exoplanet) detection, planetary orbit estimation, and adaptive scheduling of observations. Our work addresses analysis of stellar reflex motion data, where a planet is detected by observing the “wobble” of its host star as it responds to the gravitational tug of the orbiting planet. Newtonian mechanics specifies an analytical model… Expand
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References

SHOWING 1-10 OF 34 REFERENCES
Bayesian Model Selection and Extrasolar Planet Detection
Radial velocity (RV) planet searches are increasingly finding planets with small velocity amplitudes, with long orbital periods, or in multiple planet systems. Bayesian inference has the potential toExpand
Bayesian Adaptive Exploration
We describe a framework for adaptive astronomical exploration based on iterating an Observation-Inference-Design cycle that allows adjustment of hypotheses and observing protocols in response to theExpand
An integrated analysis of radial velocities in planet searches
We discuss a Bayesian approach to the analysis of radial velocities in planet searches. We use a combination of exact and approximate analytic and numerical techniques to efficiently evaluate χ 2 forExpand
Bayesian re-analysis of the radial velocities of Gliese 581. Evidence in favour of only four planetary companions
Aims. The Gliese 581 planetary system has received attention because it has been proposed to host a low-mass planet in its habitable zone. We re-analyse the radial velocity measurements reported toExpand
exofit: orbital parameters of extrasolar planets from radial velocities
Retrieval of orbital parameters of extrasolar planets poses considerable statistical challenges. Due to sparse sampling, measurement errors, parameters degeneracy and modelling limitations, there areExpand
QUANTIFYING THE UNCERTAINTY IN THE ORBITS OF EXTRASOLAR PLANETS
Precise radial velocity measurements have led to the discovery of ~100 extrasolar planetary systems. We investigate the uncertainty in the orbital solutions that have been fitted to theseExpand
Detectability of extrasolar planets in radial velocity surveys
Radial velocity surveys are beginning to reach the time baselines required to detect Jupiter analogs, as well as sub-Saturn mass planets in close orbits. Therefore it is important to understand theExpand
On the detection of other planetary systems by astrometric techniques
A quantitative method for astrometrically detecting perturbations induced in a star's motion by the presence of a planetary object is described. A periodogram is defined, wherein signals observedExpand
Discovery of Planetary Systems With SIM
Abstract : We are witnessing the birth of a new observational science: the discovery and characterization of extrasolar planetary systems. In the past five years, over 70 extrasolar planets have beenExpand
ADAPTIVE SCHEDULING ALGORITHMS FOR PLANET SEARCHES
High-precision radial velocity planet searches have surveyed over ~2000 nearby stars and detected over ~200 planets. While these same stars likely harbor many additional planets, they will becomeExpand
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