‘Anomalous’ asymmetry at weakly gravitating systems. Upper row: I/F and τ_phot profiles in simulations with r_h = 0–0.61. Error bars indicate the error of the mean, calculated from the RMS values over 20 snapshots. Arrows mark the location of the minimum I/F and τ_phot in non-gravitating r_h = 0 run. Lower row: autocorrelation functions of density and transmission for r_h = 0. Only the central parts are show: circles correspond to 1, 2, 4 particle radii. The density autocorrelation was constructed from number density of particle centres. The transmission autocorrelation was calculated from a binary table constructed by illuminating the particle field vertically with 25 ⋅ 10⁶ photons, and assigning values 0 and 1 for locations where photons were intersected/not intersected by any particle, respectively (resolution of the grid was 0.3 particle radii). In both cases a normalised autocorrelation is displayed, the grey scale extending from 0.9 (black) to 1.1 (white). Arrows indicate the viewing directions corresponding to the minimum of I/F and τ_phot.