Initial distribution of the launched tracer particles within the envelope. Shown are the normalized cumulative mass distributions m(<  x)/M_tot as well as its derivative along the radial (x = r, to 501 R_⊙), the polar (x = cos θ) and the azimuthal angle (x = ϕ) in (a), (b) and (c), respectively. The distributions for the total envelope and the launched tracer particle exceeding v_r = 110 km s⁻¹ (see Sect. 3.4) are plotted in violet and blue bars, respectively. The derivatives are plotted as black and gray lines. The companion is located at r = 501 R_⊙, cosθ = 0 and ϕ = π.