Posterior probability distribution corresponding to the cored (top panel) and cuspy (bottom panel) dark matter halo. The dashed teal lines depict the 16^th, 50^th, and 84^th percentiles of the posterior probability distribution. The blue line indicates the parameters corresponding to the model with minimum χ². In the top right corner, the model based on the 50^th percentile of the posterior and the model with minimum χ² are shown using green and blue lines, respectively. The shaded blue and green regions represent the 1σ confidence interval. The dotted red line depicts the model with zero dark matter (M_DM = 0).