Panel a: radial profiles of the radii of curvature of the shock and the CME leading edge. Panel b: radial profiles of v_sh and v_A along the two streamers depicted in Fig. 4 and time profile of M_A (see the inset). Red and blue colors correspond to the colors of the streamer axes in that figure. The U (L) suffix highlights the streamer intersected by the shock surface emitting at the upper (lower) frequency band of the type II shown in Fig. 3. Panel c: radial profiles of n_e along the two streamers depicted in Fig. 4 compared with one- and two-fold Newkirk (1961) radial profiles. Panel d: magnetic-field radial profile as derived in this work (red and blue curves), together with estimates of B based on different methods. A simple radial profile (black line within gray boundaries) nicely fits our results and the previous estimates in the range 1.1−2.0 R_⊙.