Fig. 6

Net flux (FI, upper) and circularly polarized fraction (FV, lower) simulated for the reference circumstellar disk model (113.144 GHz CN line emission). In the lower images, the derivative of FI is shown and fitted to FV to estimate the LOS magnetic field strength (red dashed line). The simulated profiles on the right side use the reference disk model with an increased magnetic field strength. Throughout the disk, the magnetic field strength is 10 times higher than assumed in Eq. (15) (Sect. 5.4).
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