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We perform Lyman-alpha radiative transfer calculations for reproducingLyman-alpha properties of star-forming galaxies at high redshifts. We model agalaxy as a halo in which the density distributions of Lyman-alpha sources andH I plus dust medium are described with exponential functions. We also consideran outflow of the medium that represents a momentum-driven wind in agravitational potential well. We successfully reproduce both the spectra andthe surface brightness profiles of eight star-forming galaxies at z =3-6observed with MUSE using this outflowing halo model with Lyman-alphascattering. The best-fit model parameters (i.e., the outflowing velocity andoptical depth) for these galaxies are consistent with other studies. We examinethe impacts of individual model parameters and input spectrum on emergingspectrum and surface brightness profile. Further investigations on correlationsamong observables (i.e., the spatial extent of Lyman-alpha halos andLyman-alpha spectral features) and model parameters, and spatially resolvedspectra are presented as well. We demonstrate that the combination of spectrumand surface brightness profile provides strong constraints on model parametersand thus spatial/kinematic distributions of medium.

Lyman-alpha radiative transfer: Modeling spectrum and surface brightness profile of Lyman-alpha emitting galaxies at z=3-6