Comparison of the AMBER data obtained in the CO first overtone lines with the MARCS-only model and MARCS+MOLsphere model for SW Vir. Panel a: spectrum. Panels b–d: visibilities observed at the baselines of 9.8, 19.6, and 29.4 m, respectively. Panel e: closure phase. In each panel, the red thick line with the error bars shows the observed data. The thin solid black line represents the MARCS-only model, while the thin solid blue line represents the MARCS+MOLsphere model. In panel a, the black and blue solid lines are almost entirely overlapping.