Structure functions and the scaling indices in the slow solar wind at 0.17 au observed by PSP. (a) S^q for the magnetic field measured in the radial direction with the same formats as Fig. 2. (b) ξ(q) for both the magnetic field (triangles) and velocity (squares) obtained from PSP and for the magnetic field (circles) obtained from Ulysses. The black and red represent the results in subrange 1 and 2, respectively. The horizontal dashed lines denote ξ = 1/2 and ξ = 2/3.