Line profiles of (upper panel) Hγ in order 34, (middle panel) Hγ in order 35, and (lower panel) Hδ in order 28 detected in the UVES spectrum for 2M1115 in the blue arm. The flux uncertainties are shown as vertical error bars and represent the weighted standard deviation among the four observations. The velocity was set with respect to the rest-frame wavelength (in air) of the respective lines.