Comparison of the line profiles of H_α, H_β, and H_γ (from bottom to top) for HD 122563, HD 103095, and the Sun. The x-axis is the wavelength shift relative to the center of the Balmer lines. The colors are coded with different α_CMA (from 0.5 to 1.5), while the solid lines and dashed lines represent profiles using LTE and NLTE line formations, respectively. The dotted lines are profiles with LTE models of α_CMA = 0.5 but T_eff + 100 K. For clarity, offsets of 0.2 and 0.4 are added to the H_β and H_γ, respectively.