Posterior probability distributions for NS parameters for Model 1a (left panels) and Model 4 (right panels) from Table 1 using one data realization. The two-dimensional contours correspond to 68% and 95% credible regions with the corresponding regions colored black and gray. The histograms show the normalized one-dimensional distribution for a given parameter derived from the posterior samples. The mean value and the 68% and 95% credible levels for the parameters are shown by the vertical dashed black, red, and orange lines, respectively. Blue lines indicate the true values of the parameters that were used for the data simulations.