Same as Fig. 8 for ALMA configuration 09. Contours: contours for the Stokes I maps (left panels) depict emission levels from 5σ up to the maximum value in steps of 50σ, where σ = 0.2 mJy beam^-1. Positive contours for the Stokes Q and U maps depict levels from 5σ up to the maximum in steps of 10σ, where σ = 0.02 mJy beam^-1. Negative contours follow the same rule. Red circles: for the Galli & Shu (1993a,b) and Allen et al. (2003a,b) models depict the loci of the front of the isothermal collapse wave (r = c_st, see Fig. 2 of Galli & Shu 1993a and Fig. 6 of Allen et al. 2003a). For the Shu et al. (2006) model it marks the 10 r_Ohm distance (see Fig. 4 of Shu et al. 2006).