A Bayesian analysis of extrasolar planet data for HD 208487

Details A Bayesian analysis of extrasolar planet data for HD 208487 A Bayesian analysis of extrasolar planet data for HD 208487

2005-09-14

arxiv.org/abs/astro-ph/0509412v1

AIP Conf.Proc.803:139-145,2006

Astronomy and Astrophysics

Astrophysics

For publication in ``Bayesian Inference and Maximum Entropy Methods'', San Jose 2005, K. H. Knuth, A. E. Abbas, R. D. Morris,

Scientific paper

10.1063/1.2149789

Precision radial velocity data for HD 208487 has been re-analyzed using a new Bayesian multi-planet Kepler periodogram. The periodgram employs a parallel tempering Markov chain Monte Carlo algorithm with a novel statistical control system. We confirm the previously reported orbit (Tinney et al. 2005) of 130 days. In addition, we conclude there is strong evidence for a second planet with a period of 998 -62 +57 days, an eccentricity of 0.19 -0.18 +0.05, and an M sin i = 0.46 -0.13 +0.05 of Jupiter's mass.

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