at latitudes scanning the half-circle by $5^\circ$ in a counter-clockwise sense.) The curves with the same maximal values represent the “converging" phase of the photon flux $\Phi_-^2(r)$, as given by (\[Phi2-minus\]), evaluated, from left to right, at latitudes going from the equatorial plane to the symmetry axis ($\theta=90^\circ$, $85^\circ$, $80^\circ$, …$0$). In the [*top*]{} plot, $\kappa=32$ and $\lambda=2$ are chosen; the equatorial density peaks nearby above the innermost stable circular orbit, having very steep falloff towards the horizon and more slow (yet also monotonous) fall towards infinity. The [*bottom*]{} plot shows a more stretched emission pattern (note the different axes ranges), given by $\kappa=64$ and $\lambda=1$. The photons starting from any given $\phi$ deviate from each other and are outgoing, so it is intuitive that the density profile gets wider when the flux travels from the equatorial plane towards the axis (recall the photon-motion pattern in Fig. \[vertical-photons\]). In the right part of the plots, the density of the photon-flux “diverging" phase $\Phi_+^2(r)$ is shown, as given by (\[Phi2-plus\],\[Fplus\],\[X0Y\]) and matched to $\Phi_-^2(r)$ along the axis; it is evaluated at latitudes going from the symmetry axis back to the equatorial plane by $5^\circ$ again. Only several first profiles of this 