Probability P of observing the black hole at various projected separations D and line‐of‐sight velocities ﹩v﹩. The colors are scaled logarithmically in P(D, ﹩v﹩), where P(D, ﹩v﹩) is the probability density for obtaining the values (D, ﹩v﹩). The probability incorporates the length of time spent by the ejected black hole at these values, averaged over ~10⁴ successful runs (which were neither terminated before the ejection nor eliminated by our minimum‐distance criterion). The white star shows the estimated coordinates of the HE 0450− 2958 quasar based on the radial velocity range reported by Magain et al., with errors bracketed by the white lines. The yellow lines indicate the magnitude of the quasar's redshift relative to the galaxy (30 ± 20 km s⁻¹) measured by Merritt et al. (2005). The histograms show the corresponding projections of P onto the D‐ and ﹩v﹩‐axes.