Top and third rows: Observed (black, with 1σ uncertainties in gray) and modeled (with different colors denoting different line-of-sight angles, θ_LOS, reported in the legend) normalized total intensity spectra I, assuming a H I column density N_H I of 10²⁰ cm⁻², an outflow velocity v_exp of 200 km s⁻¹, and a Gaussian width of intrinsic Lyασ_Src of 150 km s⁻¹, in the case of θ_o, Wind = 0° ,15° ,30° ,45° ,60° ,75° ,90°, from left to right, as indicated in the gray labels. Second and bottom rows: Polarization fraction relative to the model described in the corresponding row above. The black open circles represent the observational 1σ upper limit of P_Lyα = 4.6%. The uncertainties for the models are smaller than the linewidths.