Left panel: joint marginal posterior density for (Ω0, Ω1) in 16 Cyg B. The black dots are the MCMC sample. The continuous curves show some iso-probability levels of the corresponding three-component Gaussian mixture model. Right panel: projections on the Ω0 and Ω1 axis of the two-dimensional joint probability. The histograms show the MCMC sample and the red lines the mixture model. The dashed lines show contributions of the two main peaks in the joint density (where the main peak combines components 1 and 3, and the secondary peak is component 2; see Table 1). The dot-dashed line in the Ω1 projection shows the result using a normal distribution with the mean and variance of the MCMC sample.
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