Results of the MAMPOSSt analysis using the NFW and O models for M(r) and β(r), respectively. The vertical lines and dots indicate the best-fit solutions. The likelihood distributions on each parameter are obtained by marginalizing vs. the other two parameters. Gray-shading in the likelihood distribution plots indicate the 1σ confidence regions. The red, gray-shaded contours are 1σ confidence levels on the two labeled parameters, obtained by marginalizing vs. the third parameter. Note that we show results for σ_r/σ_θ rather than for β (see Eq. (1)).