A Bayesian periodogram finds evidence for three planets in HD 11964
作者： P. C. Gregory
DOI: 10.1111/J.1365-2966.2007.12361.X
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摘要: A Bayesian multiplanet Kepler periodogram has been developed for the analysis of precision radial velocity data. The employs a parallel tempering Markov chain Monte Carlo algorithm. HD 11964 data have re-analysed using 1, 2, 3 and 4 planet models. Assuming that all models are equally probable priori, three model is found to be ≥600 times more than next most which two model. exhibits periods 38.02 +0,06 -0,05. 360 +4 -4( 1924 +44 -43 d, eccentricities 0.22 +0.11 -0.22 , 0.63 -0.17 ( 0.05 +0.03 -0.05 respectively. signals (each one consistent with Keplerian orbit) caused by planets, corresponding limits on planetary mass (M sin i) semimajor axis (0.090 +0.15 -0.14Mj, 0.253 +0.009 -0.009 au), (0.21 +0.06 -0.07 Mj, 1.13 +0.04 -0.04 au) (0.77 +0.08 -0.08 3.46 +0.13 -0.13 small difference (1.3σ) between 360-d period year suggests it might worth investigating barycentric correction
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