Figure 5: Curve of horizon area vs. spin for five-dimensional black rings rotating along their
(solid). The dashed curve corresponds to five-dimensional MP black holes (see Figure 1). The
solid curve for black rings has two branches that meet at a regular, nonextremal minimally-rotating
black ring at : an upper branch of thin black rings, and a lower branch of fat black
rings. Fat black rings always have a smaller area than MP black holes. Their curves meet at the same
zero-area naked singularity at .
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