Figure 9

Figure 9: Rod structures for (a) the seed used to generate (b) the rotating black ring. The seed metric is diagonal, and the dotted rod has negative density − 1∕2. In the final solution the parameters can be adjusted so that the metric at z = a1 on the axis is completely smooth. The (upper) horizon rod in the final solution has mixed direction (1,0,Ω ψ), while the other rods are aligned purely along the φ or ψ directions.