Although still approximate, the point-dipole approach gives a strong indication of the importance of electron-dipole interactions in photodetachment. To illustrate this point, Fig. shows isosurface representations of the continuum probability densities at D = 0 (left) and D ≠ 0 (right) for particular Ω . For D = 0, the probability densities are those of a single spherical harmonic (multiplied by the appropriate radial function). For D = 0.60 a.u. (1.53 Debye), there are small quantitative differences to the D = 0 case for larger N, λ, but they are not visually obvious and hence omitted from the figure. That these differences are small is mainly an effect of the centrifugal barrier, which suppresses the radial amplitude and, hence, point-dipole functions correlating to higher ℓ in the vicinity of the dipole. However, even by eye, the point-dipole functions correlating to smaller ℓ (N ≤ 2) are strongly affected.