Upper panel: time series for the relative flux HD 173701 during Q3. The black dots mark the measurements and associated errors. The red line shows the inferred mean value of the posterior predictive density conditional on the inferred MAP of the parameters (Gelman 2004). Middle panel: corresponding power spectrum computed using the Lomb-Scargle periodogram (Scargle 1982). The black line represents the observed power spectrum. The red line is the power spectrum of the mean value of the conditional posterior predictive density. Lower panel: marginalized 1D and 2D PDFs for the parameters of the correlation function of the Gaussian process used to model the time series.
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