Synthetic observables (solid lines) computed from the radiative transfer images of the magnetosphere, compared to the observational data of RU Lup from 2021. A Brγ spectrum was computed from integrating the image fluxes at different wavelengths. Synthetic visibility amplitudes and phases were obtained from Fourier transformation of the images. In order to ensure comparability with the total observables recorded by GRAVITY, an additional continuum disk contribution, taking into account parameters like disk size, disk flux and halo flux, was included through a form of post processing. The figure shows the synthetic data for disk parameters chosen in accordance with the results reported in GRAVITY Collaboration (2021b).