Top: flux as a function of angle of observation for the early-bipolar model. Units are chosen so that a value of 1 would correspond to the isotropic case. Bottom: spectrum evaluated at three different angular bins (indicated by vertical lines above). Results are shown for input spectra with a width of 100 (blue, solid), 10 (green, dashed) and 40 (red, dotted) km s^-1. Spectra are normalized to the total flux in the angular bin. Model parameters are cm^-2, v_tot = 200 km s^-1, f_b = 0.5, t = 0.