Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-04-08
Nucl.Phys.B806:436-455,2009
Physics
High Energy Physics
High Energy Physics - Theory
25 pages
Scientific paper
10.1016/j.nuclphysb.2008.08.005
We construct new stationary Ricci-flat metrics of cohomogeneity 2 in five dimensions, which generalise the Myers-Perry rotating black hole metrics by adding a further non-trivial parameter. We obtain them via a construction that is analogous to the construction by Plebanski and Demianski in four dimensions of the most general type D metrics. Limiting cases of the new metrics contain not only the general Myers-Perry black hole with independent angular momenta, but also the single rotation black ring of Emparan and Reall. In another limit, we obtain new static metrics that describe black holes whose horizons are distorted lens spaces L(n;m)= S^3/\Gamma(n;m), where m\ge n+2\ge 3. They are asymptotic to Minkowski spacetime factored by \Gamma(m;n). In the general stationary case, by contrast, the new metrics describe spacetimes with an horizon and with a periodicity condition on the time coordinate; these examples can be thought of as five-dimensional analogues of the four-dimensional Taub-NUT metrics.
Lu Hai
Mei Jian-wei
Pope Christopher N.
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