Top: Example model Lyα profiles at the arbitrary and fixed line center λ₀ = 6000 Å, with a normalized total line flux and a constant line width σ = 250 km/s. Each color shows a profile with a different skewness factor, γ. The models are resampled to the spectral resolution of VLT/MUSE. Bottom: Three normalized Lyα line profiles determined using the best-fit values of σ and γ for real observed galaxies from B23, demonstrating some of the variety of shapes of observed Lyα spectral profiles.