Synthetic Stokes parameters resulting from the forward modeling in the prominence model shown in Fig. 1, with the 64 × 64 pixels FOV including only the prominence, and with added Gaussian noise with σ = 2 × 10⁻⁹ erg cm⁻² s⁻¹ Hz⁻¹ sr⁻¹. The top, second, and third panels show the intensity and Stokes Q and U for the line center at 5000 Å, respectively, while the bottom panel shows Stokes V at the wavelength of the maximum signal at −0.14 Å from the line center.