Posterior distributions for free parameters from zELDA radiative transfer modeling of Lyα emission line profile in 3σ-clipped weighted mean stack, at redshift 2.635, V_exp = ${30}_{-12}^{+55}\text{km}{\text{s}}^{-1}$, log($N_{\text{H}\text{i}}/{\text{cm}}^{-2})=20.7_{-0.01}^{+0.53}$, and ${\tau }_{\alpha }=0.{20}_{-0.17}^{+0.10}$. The grey curves indicate the 1σ and 2σ contours of the 2D distributions.